Rational and Irrational numbers
A rational number is a number that is expressed as the ratio of two integers, where the denominator should not be equal to zero, whereas an irrational number cannot be expressed in the form of fractions. Rational numbers are terminating decimals but irrational numbers are non-terminating. An example of a rational number is 10/2, and for an irrational number is a famous mathematical value Pi(π) which is equal to 3.141592653589.