Question

(1)why is every fraction a rational number
(2)write a rational number which is neither positive or negative rational number
(3)write two other names for counting numbers

Answer 1

answer 1- a rational number is a number which can be expressed in the form
$\frac{p}{q}$
where q is not zero,
and every fraction is expressed in this form only. so every fraction is a rational number.

answer 2- zero

answer 3- natural numbers, positive integers.

Answer 2

a rational number is a number that can be expressed as the quotient or fraction p/q of two integers, a numerator p and a non-zero denominator q. Since q may be equal to 1, every integer is a rational number.