Question

4u/25u

Answer 1

Just take off the U from both sides..

4/25

Answer 2

I'm new to this. I'm confused with it , but thank you

Answer 3

Principle x^n/x^m = x^(n-m) therefore
4u^1/25u^1 = (4/25) u^(1-1) = (4/25)u^0 = 4/25