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How do you know if a number rational or irrational?

Updated: 9/23/2023

Wiki User

∙ 11y ago

Best Answer

If it can be expressed as a ratio of two integers, p and q (q not 0) then it is rational. Except in some trivial cases, it is not easy to know if a number is not rational - and is therefore irrational.

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∙ 7y ago

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Continue Learning about Math & Arithmetic

How do you know if a whole number is rational or irrational?

It is always rational.

When an irrational number is divided by a rational number is the quotient rational or irrational?

Irrational.

What is the product of rational and irrational number?

The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.

Is the product of a rational number and irrational number always rational?

No.A rational times an irrational is never rational. It is always irrational.

When you multiply an irrational number by a rational number will the answer always be irrational rational or both?

It will be irrational.

Related questions

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How do you know if a whole number is rational or irrational?

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Is 37.5 a rational or irrational number?

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Is 0.05 a rational or irrational number?

It is a rational number.

Is 5.2 Rational Or Irrational?

-52 is a rational number because it can be expressed as a fraction in the form of -52/1

Is 34.5 rational or irrational?

is 34.54 and irrational or rational. number

Is 4.121314 is a rational number or irrational?

it is a rational number but 4.121314..... is an irrational no

When an irrational number is divided by a rational number is the quotient rational or irrational?

Irrational.

Is the product of a rational number and an irrational number rational or irrational?

Such a product is always irrational - unless the rational number happens to be zero.

What is the product of rational and irrational number?

The product of a rational and irrational number can be rational if the rational is 0. Otherwise it is always irrational.

Is there any irrational and rational number?

No number is irrational and rational.

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