Question

I need to know if this number is any of the following:

Answer 1

It is rational/irrational

Answer 2

A rational number can be written in the form a/b where a and b are integers and b≠0

so

remember that √(a/b)=(√a)/(√b)

so$\sqrt{\frac{82}{20}}=\sqrt{\frac{41}{10}}=\frac{\sqrt{41}}{\sqrt{10}}\frac{\sqrt{410}}{10}$

we can't make it into a/b so it's irrational