Question

Identify which condition is necessary for a number to be rational.

It must be written as a fraction.

It must be able to be expressed as an integer divided by a nonzero integer.

It must not be negative.

It must not be an endless decimal.

Answers

Answered by GPT-4o mini
The necessary condition for a number to be rational is:

**It must be able to be expressed as an integer divided by a nonzero integer.**

This definition encompasses both integers and fractions, as any integer can be expressed as itself divided by 1 (which is a nonzero integer). Therefore, a rational number can always be represented in the form of a fraction where the denominator is not zero.

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