Subjects>Math>Algebra

Is 8 over 21 rational

Anonymous

∙ 15y ago

Updated: 4/28/2022

Yes, any integer over any other integer (except zero) is always a rational number.

Wiki User

∙ 15y ago

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Continue Learning about Algebra

Is 21 over the square root of 4 a rational or irrational?

It is equal to 21/2 which is a rational number

Is 8 over 9 an irrational number?

Any addition, subtraction, multiplication, or division of rational numbers gives you a rational result. You can consider 8 over 9 as the division of 8 by 9, so the result is rational.

Is 21 over 3 a rational or irrational number?

21/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

Is 7 over 8 a rational number or irrational number?

7 over 8, which can be written as 7/8, is a rational number. A rational number is any number that can be expressed as a fraction where the numerator and denominator are integers, and the denominator is not zero. Since 7 and 8 are both integers, and 8 is not zero, 7/8 is a rational number.

Is 5 over 8 irrational or rational?

Any fraction involving whole numbers is RATIONAL.

Is 8 over 21 a rational or irrational number?

Any number that is presented as an integer "over" (aka divided by) an integer is automatically a rational number - that's what the definition of a rational number is.

Is 8 over 21 a rational number Yes or no?

ANY number that you can write as a fraction (with whole numbers top and bottom) is rational.

Is 8 out of 21 rational?

no it is not

Why is 8 out of 21 not rational?

Because it can be expressed as a fraction in the form of 8/21

Is 7 over 8 rational or irrational?

Rational.

Is 8 over 10 rational or irrational number?

Rational.

Is 21 over the square root of 4 a rational or irrational?

It is equal to 21/2 which is a rational number

Is 8 over 23 rational?

8/23 is a rational number because all fractions and integers are rational numbers

Is 8 over 9 an irrational number?

Any addition, subtraction, multiplication, or division of rational numbers gives you a rational result. You can consider 8 over 9 as the division of 8 by 9, so the result is rational.

Is 5over 8 an rational or irrational or integer or natural?

5 over 8 is a rational number.

Is 21 over 3 a rational or irrational number?

21/3 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.

Is .4 over .8 rational or itrational?

.4/.8 is the same as 1/2 which is a rational number

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