a rational number is one that can be written as a ration. Or we can say that a rational number can be written as a/b where a and b are integers and b ≠0.
0.25 = 25/100
= 1/4
0.25 ⇒ It is rational.
√0.25 = 0.5
= 5/10
= 1/2
√0.25 ⇒ It is rational
√0.33 = 0.5744562664.......
This can not be written as a/b. So,√0.33 it is irrational
