Question

find all the rational numbers whose absolute value is less than 3

Answer 1

The definition of a rational number is any number that can be expressed in the form a/b, where a and b are integers and b is not equal to 0 (which makes it undefined). So "rational numbers" definitely includes fractions.

The answer to your question is

-3 < x < 3

Also , the set of rational numbers between -3 and 3 INCLUDES zero. Zero is a rational number since it can be expressed as 0/b when b is not equal to zero.