Question

3/4g = 5/8

It seems like you should multiply 3/4 by 2 to get 6/8 but I don't know what I woud do from there.

Answer 1

Then subtract 1/8? Is this now the common core in elementary?

Answer 2

3/4g =5/8
g = 5/8 (division symbol) 3/4
g = 5/8 x 4/3
g = 20/24
Therefore g = 5/6
It's basic algebra