Which is a rational number? √49 √13/16 √9/2 √34

Mathematics · Middle School · Thu Feb 04 2021

Answered on

Here, only √49 is a rational number because it has a perfect square root 7. 

Hence it can be represented in the form of p/q which satisfy the condition of a rational number.

Whereas, other numbers √13/16 √9/2 √34 doesn't have a perfect square root and hence they are irrational numbers.

Definition of irrational number : Any real number that cannot be written in fraction form is an irrational number. These numbers include non-terminating, non-repeating decimals, for example , 0.45445544455544445555..., or . Any square root that is not a perfect root is an irrational number.