Can someone tell me what is Rational Numbers ? example ?

A rational number has this following form:
(integer) / (integer)

Some examples:
2 / 3
-4 / 11
7 [this is just 7/1]

A rational number is a number that can be put in the form p / q where p and q are integers.
Example are:-
6 = 12/2
7/3
- 5 = - 10/2
etc

A rational number is any number that can be expressed as the product of division between two integers.
Example: 0.3333...=1/3, 5.45=545/100 and so on are rational numbers.
Numbers like pi, e, square root of 2 and so on are irrational numbers.
BTW: pi isn't a rational number, but 22/7 is the rational approximation of pi.

Rational Numbers:
1 , 1/2 , 3/4 , 2/7 , 10 , ......

Irrational Numbers:
3.141592653...... , 0.142857142857...... , 0.318318318318318......