Respuesta :

Do you mean (3/8 * 64) ÷ (2/5 * 15/16)

If that is the case, then, First you would do the parenthesis. 
3/8*64= 24, and 2/5 * 15/16 is 3/8.

So, You would divide-------------24 ÷ 3/8=64
You have your answer, 64.