Question

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

it must be able to be expressed as an integer divided by a nonzero integer
it must not be negative
it must be written as a fraction
it must not be an endless decimal

Answers

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 means that a rational number can be written in the form \( \frac{p}{q} \), where \( p \) is an integer and \( q \) is a nonzero integer.