Rational and Irrational

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction; it cannot be written as a ratio of two integers.

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Rational

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Irrational

Front

What is the sum of two rational numbers?

Back

The sum of two rational numbers is always rational.

Front

What is the product of two rational numbers?

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The product of two rational numbers is always rational.

Front

What is the sum of a rational number and an irrational number?

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The sum of a rational number and an irrational number is always irrational.

Front

What is the product of a nonzero rational number and an irrational number?

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The product of a nonzero rational number and an irrational number is always irrational.

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Irrational

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Rational