Question

(b) Numerator is a positive integer and denominator is a negative integer​

Answer 1

Explanation:

When the numerator and denominator both are positive integers or both are negative integers, it is a positive rational number.

When either the numerator or the denominator is a negative integer, it is a negative rational number. The number 0 is neither a positive nor a negative rational number.

Answer 2

a/-b = -a/b

since only positive number can be denominator therefore we reverse it