Question

WHAT ARE RATIONAL NUMBERS ?
WHAT ARE IRRATIONAL NUMBERS ?

Answer 1

A rational number is any number that can be represented as a fraction. (7=7/1 or 52 = 26/1 ).
An irrational number is a number like 3.14159 (pi) or anything like that.

Answer 2

Rational numbers are numbers that can be written as a fraction. Rational numbers include the integer set. These numbers can be written as repeating and terminating decimals also.

Irrational numbers are the numbers that can not be turned in to a fraction. These are decimals that are non-terminating and non-repeating.