How to tell if a number is rational or irrational?
Let's understand rational and irrational numbers
Answer: If a number can be written or can be converted to p/q form, where p and q are integers and q is a non-zero number, then it is said to be rational and if not then it is irrational
Let's look into some examples
A rational number can be defined as any number that can be expressed or written in the p/q form, where 'p' and 'q' are integers and q is a non-zero number.
Example: 12/5, -9/13, 8/1
An irrational number on the other hand cannot be expressed in p/q form and the decimal expansion of an irrational number is non-repeating and non-terminating.
Example: √2, √7, √11, etc
With the help of these definitions, we can identify and categorize numbers as rational or irrational.