Question

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

Answer 1

Answer: Choice B) 1/4

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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

Answer 2

B: 1/4 quart

3/4 quart divided into thirds is 1/4. So, one-third is 1/4 quart.