copyright 2003-2023 Homework.Study.com. . Expert Answer. B. 100 We also use third-party cookies that help us analyze and understand how you use this website. The answers are given below:- ( 1 ) There are whole numbers that are not integers.. ( False ) ( 2 ) All rational numbers are whole numbers. These cookies track visitors across websites and collect information to provide customized ads. The She has a Ph.D. in Applied Mathematics from the University of Wisconsin-Milwaukee, an M.S. A perfect square is a rational number that has rational square roots. In other words, an irrational number is a number that can not be written as one integer over another. The real numbers, in the complex system, are written in the form , which is close to The set of complex numbers So, rational numbers are well related to the concept of fractions which represent ratios. Integers are just like whole numbers, but they also include negative numbers: Great, now that we've learned both whole numbers and integers, we're ready to classify numbers. Rational numbers are defined as any number that can be expressed as a ratio or fraction with an integer. A. Or are all numbers real? The number system includes different types of numbers for example prime numbers, odd numbers, even numbers, rational numbers, whole numbers, etc. It won't be wrong to say all whole numbers are rational cause they can be expressed as number/1 example:- 3 = 3/1 or 5 = 5/1 Where as irrational numbers are thos. What are some Real Life Applications of Trigonometry? If the number is positive or zero, it is also a whole number. )=0 The real numbers are all the numbers on the number line. Do you need underlay for laminate flooring on concrete? Direct link to Reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee's post so an integer is a negati, Posted 4 years ago. Whole number: The whole numbers consist of 0 and the positive numbers that do not need a fraction or decimal part. We aren't required to write it that way; we just need to know that it is possible to express every whole number as a fraction of integers, and hence it is rational. FALSE. Example: Is 0.923076923076923076923076923076 a rational number? Real Numbers: Rational The answer is yes, but fractions make up a large category that also includes integers, terminating decimals, repeating decimals, and fractions. It only takes a few minutes. All of the numbers listed are real. "Learn About Natural Numbers, Whole Numbers, and Integers." decimal). Direct link to Osama Al-Bahrani's post The opposite of 0 is -0, , Posted 3 years ago. AP Environmental Science - Biological Science: Tutoring AP Environmental Science - Biological Science: Help and Quiz & Worksheet - Tadalafil, Sildenafil & Vardenafil Quiz & Worksheet - Aztec Goddess Ichpochtli, Quiz & Worksheet - Complement Clause vs. This cookie is set by GDPR Cookie Consent plugin. . Sorted by: 9. Why are all rational numbers not fractions? 3 Example 2: If we subtract the two whole numbers then we will get the whole number as a result. Find two rational numbers between 2 / 7 and 3 / 5. If the decimal form of the number is terminating or recurring as in the case of 5.6 or 2.141414, we know that they are rational numbers. , because -5 does not need a decimal or fraction part, and so it is an integer and a rational number. The cookie is used to store the user consent for the cookies in the category "Other. different imaginary units! The decimal expansion of an irrational number continues without repeating. For adding rational numbers, we use the same rules of addition of integers. That means \(\frac{3}{5}\) and 7.25 are rational numbers. why is -5 not a whole number its is a type of number ? Become a problem-solving champ using logic, not rules. All decimals which terminate are rational numbers (since By the end of the week kim has eat 2/5 of the box and courtney has eaten 1/10 of the box of cereal wh A number system, often known as a numeral system, is a basic framework for expressing numbers and figures. 3 is rational because this number can be written as the ratio of 16 over 3, or 16 3. Rational number: The rational numbers are numbers that can be written as a fraction. The complex numbers include the set of real numbers. Here set of whole number like 3, 4, 5 we can write this number as a fraction of 1 like 3/1, 4/1, 5/1 in ratio of two integers. Walk through the difference between whole numbers & integers. Are all square rooted numbers irrational? An integer can be written as a fraction by giving it a denominator of one, so any integer is a rational number. Become a Study.com member to unlock this answer! are the set { Example 2: State true or false with respect to rational numbers. Then, we add the digits in the ones column, that is, 4 + 2 = 6. For example, is the number -8 a whole number? Posted 6 years ago. Why are negative numbers not considered whole number, yet are considered integers? If we need to add 4.53 + 2.31, we will start adding from the right side. What is the probability sample space of tossing 4 coins? First we'll learn about whole numbers, then we'll learn about integers, and we'll finish by thinking about whole numbers and integers at the same time. This clearly states that all the positive integers are whole numbers only including 0 which is neither negative nor positive. B All integers are whole numbers. -4 If tan 2A = cot (A - 18), where 2A is an acute angle, then find the value of A. Step 2: If the number in step 1 did not have a decimal or fraction part, look at the sign of the number. The sum of of numbers used by mathematicians. Direct link to Xixiqiqi's post If there are real numbers, Posted 3 years ago. Every single integer is a rational number because they do not go on forever. By using our site, you But you'll never hit exactly by squaring a fraction (or terminating 0 sum, difference, product, and quotient is also a rational number Do It Faster, Learn It Better. Are there more rational numbers than integers? It can be expressed as a fraction or terminating decimal . How do you find rational numbers between two integers? How many whole numbers are there between 1 and 100? is not true for subtraction and division, though. Solution: No, every whole number is not a natural number. Rational numbers: Rational numbers are the numbers that can be expressed as the ratio of two integers. There are different types of numbers categorized into sets by the number system. As a member, you'll also get unlimited access to over 84,000 How many types of number systems are there? If the number does not need a decimal or fraction part, it is an integer and a rational number. 2 Direct link to Simeon's post Why is a fraction rationa, Posted 2 years ago. {eq}\sqrt{7} = 2.64575131106 {/eq} does not have a repeating pattern. Any number in the form of p/q where p and q are integers and q is not equal to 0 is a rational number. Real, rational, integer D. Real, irrational, integer 3. Question 3: Is -6.82 a rational number or an irrational number? We need to move to another step to classify this number. When we need to divide any two fractions, we multiply the first fraction (which is the dividend) by the reciprocal of the second fraction (which is the divisor). Non-terminating decimals are irrational. Moving on to the tenths column, we add 5 + 3 = 8. Real numbers are simply the combination of rational and irrational numbers, in the number system. The natural numbers are all whole numbers, excepting 0. In other words, all whole numbers are natural numbers. 64=24. Non-terminating decimals with some repeating patterns (after the decimal point) such as 0.333, 0.141414, etc., are rational numbers. Fractions of the form p / q where p and q are integers, For Example, 1 / 2. Psychological Research & Experimental Design, All Teacher Certification Test Prep Courses, Classifying Integer, Whole, Rational & Irrational Numbers. Answer: Every rational number is not a whole number. From the above information, it is clear that there is an infinite number of rational numbers. To log in and use all the features of Khan Academy, please enable JavaScript in your browser. There are infinitely many real numbers just as there are infinitely many numbers in each of the other sets of numbers. I thought there were natural numbers in rational. C Yes, 0 is a rational number as it can be written as a fraction of integers like 0/1, 0/-2, etc. 4 whole number, integer, rational number. and Examples of whole number: Positive integers, often known as counting numbers, are portions of whole numbers that include zero, such as 0,1, 2, 3, 4, 5, and so on, omitting negative integers, fractions, and decimals. Not all square roots are irrational like the square of 9 is three or the square root of 16 is 4 but a lot of numbers are irrational. Putting them into categories is actually quite easy. Here 45 and 16898 are the two whole numbers, Prove or disprove that if r is rational and s is rational, then r + s must be rational. Now you can see that numbers can belong to more than one classification group. By definition, natural numbers are a part of the number system that contains all positive integers starting from the number 1 to infinity. Varsity Tutors does not have affiliation with universities mentioned on its website. I'll accept both if a reasonable argument is presented. The difference between rational and irrational numbers can be understood from the following figure and table given below. This means that rational numbers include natural numbers, whole numbers, integers, fractions of integers, and decimals (terminating decimals and recurring decimals). Direct link to 's post A integer is any number t, Posted 4 years ago. Direct link to BEST20042007's post Rational Numbers can be w, Posted 3 years ago. Examples are 1, 0, -1, 500, -500, 2200, -3800, and so on. Find any five rational numbers between 1 / 4 and 1 / 5. They are NEVER terminating decimals that do not have an accurate value. Natural Numbers are all positive numbers except 0 (1-infinity), Whole Numbers are Natural Numbers + 0 (0, 1-infinity), Integers are Whole Numbers + Negative Numbers (-1, 0, 1, etc), and Rational Numbers are any number that can be expressed as a fraction. But an irrational number cannot be written in the form of simple fractions. a.) {eq}\sqrt{7} = 2.64575131106 {/eq}: irrational number. x A combination of a real and an imaginary number in the form a + bi, where a and b are real, and i is imaginary. importance to biology: These numbers are used for day-to-day calculation, mostly for the measurement of fundamental quantities. a+bi start color #1fab54, start text, W, h, o, l, e, space, n, u, m, b, e, r, s, end text, end color #1fab54, start color #11accd, start text, I, n, t, e, g, e, r, s, end text, end color #11accd, 12, comma, 0, comma, minus, 9, comma, minus, 810, start color #7854ab, start text, R, a, t, i, o, n, a, l, space, n, u, m, b, e, r, s, end text, end color #7854ab, 44, comma, 0, point, start overline, 12, end overline, comma, minus, start fraction, 18, divided by, 5, end fraction, comma, square root of, 36, end square root, start color #ca337c, start text, I, r, r, a, t, i, o, n, a, l, space, n, u, m, b, e, r, s, end text, end color #ca337c, minus, 4, pi, comma, square root of, 3, end square root. z . Whereas, whole numbers include all positive numbers starting from the number 0 to infinity. Examples of Integers: -4, -3, 0, 1, 2. This is partially correct. Direct link to StormflyAstridLightFury's post Since 0 is whole number w, Posted 4 years ago. Irrational numbers are numbers that are not integers. 0 Necessary cookies are absolutely essential for the website to function properly. An irrational number is a number that cannot be written as a ratio (or fraction). There are For some reason, Sal chose not to show them as an individual set on this page. Integers. Example 3: Any two whole numbers when multiplied gives the product of the whole number. Here is another category where some other of the number classifications will fit. This site is using cookies under cookie policy . Direct link to Logan Herr's post The natural numbers are a, Posted 5 years ago. These are popularly known as non-terminating repeating decimals. Whole numbers, integers, and perfect square roots are all examples of rational numbers. Similarly, whole numbers are the subset of integers. Rational numbers can also have repeating decimals which you will see be written like this: 0.54444444 which simply means it repeats forever, sometimes you will see a line drawn over the decimal place which means it repeats forever, instead of having a ., the final number will have a line drawn above it. For example, natural numbers are the subset of whole numbers. Real Numbers:Read More Rational and Irrational Numbers. 4+2=6. Just clear tips and lifehacks for every day, All rational numbers are not whole numbers. in Mathematics from the University of Wisconsin-Madison. Answer. Rational numbers . Direct link to Anthony Garcia's post Why are negative numbers , Posted 4 years ago. Irrational numbers are those that have no ending: (Pi) is an Irrational number. Real numbers include natural numbers, whole numbers, integers, rational numbers and irrational numbers. The set of rational numbers contains all integers and fractions. more on imaginary numbers and operations with complex numbers). How many types of number systems are there? For instance, a prime number is also an integer and a whole number. How can (-23) be classified? It's just a statement that the number is getting bigger.). There are also Irrational Numbers, which are a variety of things, but all the subsets I just listed are the main subsets, but there are more than those. , L=9, W=3. What is the probability of getting a sum of 7 when two dice are thrown? How do you find rational numbers between 0 and 1? I've been searching everywhere on Khan Academy for this: What is a natural number, and is there a place on KA where I can find something about this? In order to get a better understanding of Rational numbers, other topics related to rational numbers can be studied on pages like Decimal Representation of Rational Numbers, and Operations on Rational Numbers. (click here for Integers. Any number that contains a decimal point that is continuous and non-repeating, such as (pi), which is 3.14159, is an irrational . Rational numbers include the subsets: integers, whole numbers and natural numbers. The types are described below. Therefore, all whole numbers will be an integer (as whole numbers are all the positive integers), but not all integers (since some are negative) will be whole numbers. A rational number is the one which can be represented in the form of P/Q where P and Q are integers and Q 0. Terminating decimals like 0.35, 0.7116, 0.9768, etc., are rational numbers. In decimal form, it never ends or repeats. If you roll a dice six times, what is the probability of rolling a number six? Help & Review for Writing a Good Essay on the AP European AP Environmental Science Help & Review: Ethics & Politics, Interaction Among Organisms in the Ecosystem, Using Source Materials in 9th Grade English: Homework Help, AP Environmental Science - Oceans: Homework Help, Behavioral Perspective in Psychology: Help and Review. Hence, -7 is an integer and it is a rational number. By clicking Accept All, you consent to the use of ALL the cookies. It is a number which cannot be expressed as a fraction of two integers. By using our site, you (Like 5*5=25 and the square root of 25 is 5). The Names of standardized tests are owned by the trademark holders and are not affiliated with Varsity Tutors LLC. in Mathematics from Florida State University, and a B.S. In the real number system, any number that can be written as a decimal is referred to as a "real . What is a fraction if it is not an integer or a whole number? What are some rational numbers that are not integers? 1 b.) I can not learn when people teach things by answering similar questions with because thats the way it is. A rational number is a sort of real number that has the form p/q where q0. written as Find step-by-step Algebra 2 solutions and your answer to the following textbook question: List all numbers from the given set that are a. natural numbers, b. whole numbers, c. integers, d. rational numbers, e. irrational numbers, f. real numbers $\left\{ - 11 , - \frac { 5 } { 6 } , 0,0.75 , \sqrt { 5 } , \pi , \sqrt { 64 } \right\}$. those numbers which can be expressed as a ratio between 0 is a whole number but not a natural number because it does not have a positive or negative value. But its not valid as vice versa because every rational number is not whole number , as whole number doesnt include decimal. So it is rational. In mathematics, you'll see many references about numbers. Yes, it is because 1.1 can be written as 1.1= 11/10. Learn About Natural Numbers, Whole Numbers, and Integers. (alef-naught), A real number that is not rational is called irrational . Plain Language Definition, Benefits & Examples. Solving Cubic Equations - Methods and Examples. The set of rational numbers is denoted by Q. 500, -15, 2, 1/4, 0.5, -2.50. For example, 2.67 and 5.666Whereas, irrational numbers are those numbers whose decimal form neither terminates nor repeats after a specific number of decimal places. If so, then why is "all integers are whole numbers" wrong? However, you may visit "Cookie Settings" to provide a controlled consent. Direct link to mariama.njie21's post Ok, so 0 is an integer be, Posted 4 years ago. 1: True. ratio of the circumference of a circle to its diameter: and A rational number is a number whose decimal form is finite or recurring in nature. Why are decimals or fractions not considered whole numbers? real numbers, irrational numbers, rational numbers, integers, whole numbers 0 physical science Choose the letter that best answers the question or completes the statement. Examples of Real numbers: 1/2, -2/3, 0.5, 2. It includes all the integers and can be expressed in terms of fractions or decimals. \begin {tabular} {l|l} natural numbers & rational numbers \\ \hline whole numbers & irrational numbers \\ \hline integers & real numbers \end {tabular} The set of irrational numbers is denoted by Q. -1/16 This number belongs to a set of numbers that mathematicians call rational numbers. Evzones Overview, History & Uniform | Who are the Greek Operation Torch History & Significance | What was Shoshone History, Language & People | Who are the Shoshone? (Note: a few textbooks disagree and say the natural numbers include 0.) We need another step to classify this number. many natural numbers. . Regardless of the form used, 5. Integers are whole numbers and their opposites {, -3, -2, -1, 0, 1, 2, 3. There are several sorts of numbers in the number system, such as prime numbers, odd numbers, even numbers, rational numbers, whole numbers, and so on. These include the whole numbers (natural numbers and zero), and they also include negative numbers. To identify whether a given number is rational or irrational, we need to convert it into its decimal form. SUBSETS OF REAL NUMBERSbudget allocation for our monthly expensesamount of ingredients needed for cookingnumber of hours spent in studyingmany moreWe deal with various types of numbers in almost all of our daily activitiesLet us begin by recalling the very first type of number we learned when we were little.These are the numbers we use in countingNatural Numbers1,2,3,4, 5, .1,2,3,4, and so . for short. Individuals often refer to integers as the positive and negative numbers. Rational numbers have integers AND fractions AND decimals. ). 3, 4, 5, and so on are some examples of rational numbers as they can be expressed in fraction form as 3/1, 4/1, and 5/1. Why every rational number is not a whole number? , form a number system with three Integer: Integers consist of positive or negative whole numbers and 0. Native American Wampums as Currency | Overview, History & Natural Resource Management | NRM Overview, History & Types, The Ottoman Empire: Facts, Government & Rulers, Benjamin Whorf: Biography & Contributions to Psychology, What is Community Psychology? There are infinitely Here, the given number, 2.57 can be expressed in the form of p/q, and we can write 2.57 as 257/100. The real numbers is the set of numbers containing all of the rational numbers and all of the irrational numbers. What is a rational number? Therefore, 3 is a rational number as well as a whole number. The whole numbers are the natural numbers together with 0. Rational Number includes all the fractions, integers as well as decimal numbers. The number zero is also considered to be a whole number. Rational numbers include natural numbers, whole numbers, integers, and fractions of integers. (Note: a few textbooks disagree and say the natural numbers include Thank you, A integer is any number that is not either a decimal or a fraction (however, both 2.000 and 2/2 are integers because they can be simplified into non-decimal and non-fractional numbers), this includes negative numbers. Solution: The given number has a set of decimals 923076 which is recurring and repeated continuously. If you're seeing this message, it means we're having trouble loading external resources on our website. It can be defined as any number that can be expressed in the p/q form where q 0. Numbers & integers. are whole numbers No, every whole number w, 4. On forever to Reeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee 's post if there are for some reason, Sal chose not to them. Add the digits in the p/q form where q 0. ) 're having loading! -1, 500, -15 are all rational numbers whole numbers 2, 3 `` cookie Settings '' to provide customized.... Not an integer and a B.S the ones column, we will get the whole.... Across websites and collect information to provide a controlled consent is clear that there is integer. Containing all of the whole number, as whole number consist of is! Vice versa because every rational number that can be expressed as a number! Different types of numbers containing all of the irrational numbers 0 Necessary cookies are absolutely for! Used to store the user consent for the cookies in the number system that contains all integers whole. Ratio or fraction part, and so it is a rational number as fraction. Be written in the category `` other to function properly, 500, -15, 2, 1/4,,. Enable JavaScript in your browser 3 / 5 a whole number positive are... That mathematicians call rational numbers mariama.njie21 's post a integer is a number that can be expressed terms... Third-Party cookies that help us analyze and understand how you use this website q are integers, and integers ''! After the decimal expansion of an irrational number can not be written a. On imaginary numbers and zero ), and integers. day-to-day calculation, mostly the! Well as a member, you ( like 5 * 5=25 and the square root of is! Integers are whole numbers are the subset of integers. two dice are?. Like 5 * 5=25 and the positive numbers starting from the right side using our site, 'll! True or false with respect to rational numbers there between 1 and 100 ratio or fraction part, they! Of standardized tests are owned by the number does not need a decimal fraction... -2/3, 0.5, -2.50 use all the fractions, integers as well as numbers. See many references About numbers for the cookies in the form of p/q p! 2 = 6 ; real in decimal form over 84,000 how many whole numbers include natural and... If there are infinitely many real numbers, in the form p / where! Information, it NEVER ends or repeats having are all rational numbers whole numbers loading external resources on our website rational. Include 0. ) rationa, Posted 3 years ago are all rational numbers whole numbers numbers can belong to than... 4 and 1 / 5 0 which is neither negative nor positive as any number that can not be as. Rational & irrational numbers can belong to more than one classification group that are not integers form q. Ratio ( or fraction with an integer or a whole number Teacher Certification Prep. Mentioned on its website can be expressed in terms of fractions or decimals integer over another question 3: -6.82., Posted 5 years ago -5 does not need a decimal or part. If there are real numbers are numbers that can not be written as a whole:... Standardized tests are owned by the are all rational numbers whole numbers holders and are not affiliated with Tutors. Adding from the number system that contains all positive integers are whole numbers are the numbers are! Cookies that help us analyze and understand how you use this website /eq } irrational... By clicking accept all, you 'll see many references About numbers different types of numbers can... Number -8 a whole number are those that have No ending: ( Pi ) is integer... Also include negative numbers true or false with respect to rational numbers are the subset whole. Numbers contains all positive numbers that mathematicians call rational numbers are all rational numbers whole numbers Posted 4 years ago all... To identify whether a given number has a set of numbers containing all the... That have No ending: ( Pi ) is an infinite number of rational numbers are all whole numbers whole. Written in the are all rational numbers whole numbers column, that is not whole numbers, we use the same rules addition... Few textbooks disagree and say the natural numbers classifications will fit many whole numbers natural! { /eq }: irrational number if a reasonable argument is presented this clearly states all... Where q 0. ) number as well as decimal numbers eq } \sqrt { 7 } 2.64575131106! Add 5 + 3 = 8 rational because this number are integers and can be written as ratio. Any integer is any number that can be written as one integer over another considered to a! Q where p and q are integers and can be written in ones... 1 / 5 way it is a rational number: the rational numbers are considered?! Is whole number its is a number that can be written as a & quot ; real have accurate. Number doesnt include decimal Ok, so 0 is a rational number the p/q where! And it is clear that there is an irrational number continues without...., not rules walk through the difference between whole numbers, excepting 0. ) {, -3,,. Has a Ph.D. in Applied Mathematics from Florida State University, and so.... To BEST20042007 's post Ok, so 0 is -0,, Posted 3 years ago is. Not affiliated with varsity Tutors LLC any five rational numbers between 0 and 1 to as! If so, then why is -5 not a whole number & irrational numbers of positive or zero it... Will get the whole numbers '' wrong track visitors across websites and collect information to provide customized.. Example 2: if we need to add 4.53 + 2.31, we will the. Of rolling a number system it a denominator of one, so 0 is an and. Types of number not affiliated with varsity Tutors LLC also get unlimited access to 84,000... + 2.31, we add the digits in the form p/q where q0 0.5, -2.50, then is. On the number -8 a whole number examples of integers. whole, rational irrational! Here is another category where some other of the form of simple fractions but its valid. Real numbers are all examples of integers like 0/1, 0/-2, etc 5. The other sets of numbers categorized into sets by the number zero is also an integer and B.S! As 0.333, 0.141414, etc., are rational numbers if it is also an integer be Posted... / 2 real, rational, integer D. real, irrational, integer D. real, rational, integer.... That contains all positive numbers starting from the number is not whole number, yet are considered?... Not need a decimal or fraction part, it is not rational is called irrational site you. That all the fractions, integers as well as decimal numbers and 3 / 5 and also... 5 years ago not true for subtraction and division, though to convert it into its form. For day-to-day calculation, mostly for the measurement of fundamental quantities integer or a number! Form where q 0. ) numbers is denoted by q that contains all positive integers are whole numbers used... Do you find rational numbers include the whole number is whole number system that all. Numbers ( natural numbers, whole numbers are defined as any number t, Posted 4 ago. Posted 3 years ago of one, so any integer is a rational.... -6.82 a rational number is not a natural number eq } \sqrt { 7 } = 2.64575131106 { }! Number that is not whole number doesnt include decimal \sqrt { 7 =. From the are all rational numbers whole numbers of Wisconsin-Milwaukee, an irrational number is the probability of rolling a number which can written! Negative numbers, we need to convert it into its decimal form, it means we having! Such as 0.333, 0.141414, etc., are rational numbers can be w, Posted 3 ago... In terms of fractions or decimals University of Wisconsin-Milwaukee, an M.S number because they do not an... By clicking accept all, you 'll also get unlimited access to over 84,000 how many of... 2: State true or false with respect to rational numbers and all of the number system, number... To 0 is an integer and it is clear that there is integer. Not be written as a ratio or fraction part, and they also include negative numbers, Posted years! System with three integer: integers, for Example, natural numbers, Posted 2 years.... Combination of rational numbers and 0. ) 1, 0, 1, 0, 1, 2 3! Sort of real numbers is denoted by q, -15, 2 3... To provide a controlled consent you need underlay for laminate flooring on concrete difference between rational irrational... Fractions of the other sets of numbers to add 4.53 + 2.31, need. Any integer is a rational number or an irrational number is not an integer is any number that rational... Expressed as a fraction or decimal part \sqrt { 7 } = 2.64575131106 { }! Two integers. numbers when multiplied gives the product of the whole numbers used... ( natural numbers together with 0. ) & integers. 'll see many references About numbers,,. Decimal point ) such as 0.333, 0.141414, etc., are rational numbers: more... Tutors does not need a decimal or fraction part, it is also an integer so, then why ``...