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21/71 is rational. Rational numbers are numbers that can be written as a fraction. Irrational Numbers cannot be expressed as a fraction.
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Earn +20 ptsQ: Is 21 out of 71 rational or irrational?
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Continue Learning about Math & Arithmetic
Is the square root of 71 rational or irrational?
irrational
Is the square root of 71 a rational number or irrational?
The square root of 71 is an irrational number
Is the square root of 21 an irrational or a rational number?
irrational
Is -71 an irrational number?
No, it is a rational number because it can be expressed in fraction form: -71/1
Is 4.2 an irrational or rational number?
It is rational because it can be expressed as a fraction which is 21/5
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