Answer:
it would take 2.25 1/3 cups if you are looking for an exact answer, or if you are looking for the minimum amount of 1/3 cups necessary to make 3/4 it would be 3.
Explanation:
You can solve this by cross multiplying 1/3 and 3/4
You will get 9/4 which simplifies to 2 1/4 or 2.25