Three rational numbers are: 5/7, -10/23, 57
A rational number is a number which can be written as
where p and q are integers
and they are co-prime
- A rational number can always be written as p/q. 57 can be written as 57/1.
- Both p and q should be integers. That's why though we can write √2 as √2/1, it is not a rational number as √2 is not an integer.
- Both p and q are co-prime which means p and q have only one common factor, which is 1. If there is any other common factor, then it can be further reduced.
For example, 10/14 can be written as 5/7.