Rihanna had 3/4 quart of orange juice. she drank 1/3 of it at breakfast. how much orange juice did rihanna drink?

Choice B) 1/4



Explanation:

Imagine that Rhianna has 4 blocks. If we mark 3 of those blocks with a different color, then this represents 3/4 of all the blocks.

If we focus on those 3 blocks, and take one-third of them, then we'll pick on 1 block. This is out of the original 4 total. So that's why the answer is 1/4

An alternative to see this is to multiply 3/4 and 1/3 
(3/4)*(1/3) = (3*1)/(4*3) = 3/12 = 1/4
Getting the same answer as before