Question

What is the square root of (16/25)?

Answer 1

`4/5`

Explanation:

`16/25 = (4*4)/(5*5) = (4/5)*(4/5) = (4/5)^2`

So `sqrt(16/25) = sqrt((4/5)^2) = 4/5`

`-4/5` is also a square root of `16/25`, but by convention when we say the square root, we tend to mean the positive one.