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Is 4.2 an irrational or rational number?

Anonymous

∙ 13y ago

Updated: 12/24/2022

It is rational because it can be expressed as a fraction which is 21/5

Wiki User

∙ 13y ago

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Is -42 rational or irrational?

-42 is rational. All integers are rational numbers as they can be expressed as the number over 1 which, being one integer over another integer, is the form of a rational number.

Is the square root of 42 rational or irrational?

Irrational.

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.

Related Questions

Is square root of 42 rational or irrational?

The square root of 42 is an irrational number

Is 11 over 42 an irrational number?

No because 11/42 is a rational number

Is -42 rational or irrational?

-42 is rational. All integers are rational numbers as they can be expressed as the number over 1 which, being one integer over another integer, is the form of a rational number.

Is the square root of 42 rational or irrational?

Irrational.

Is 37.5 a rational or irrational number?

Rational

Is 0.05 a rational or irrational number?

It is a 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.

Can you add irrational number and a rational to get a rational number?

If an irrational number is added to, (or multiplied by) a rational number, the result will always be an irrational number.

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