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

Question

(1 point)
It must be able to be expressed as an integer divided by a nonzero
integer.
It must not be an endless decimal.
It must not be negative.
It must be written as a fraction.

Answer 1

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 captures the essence of rational numbers, which are numbers that can be expressed as a fraction (where the numerator is an integer and the denominator is a nonzero integer).