If you are willing to know What are Rational Numbers and general representation of it have a look at the further modules. The number that can be expressed in the form of a fraction a/b where a, b are integers and the denominator b is non zero is called a rational number.
You can also say that a Rational Number is a number that can be expressed as the quotient of two integers having the condition where the divisor is non zero.
Numerator and Denominator: If a/b is a rational number then integer a is the numerator and b is the denominator.
Examples: 3/2, 8/5, -14/3, -11/5 are all Rational Numbers as they have integers in numerators and denominators and denominators are non zero.