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Earn +20 ptsQ: Is 2.1 rational
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Continue Learning about Math & Arithmetic
Is the square root of 21 rational?
No, they are not.
Is 21 out of 71 rational or irrational?
21/71 is rational. Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.
Is 8 out of 21 rational?
no it is not
Is 4.2 an irrational or rational number?
It is rational because it can be expressed as a fraction which is 21/5
Why is 8 out of 21 not rational?
Because it can be expressed as a fraction in the form of 8/21
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