Three friends share a large pizza. Maria eats 1/4 of the pizza, and Ahmed eats 3/8 of the pizza. How much is left for the third person? Express your answer in simplest form.
5/12
3/7
1/2
11/12
The total amount of pizza that Maria and Ahmed ate is 1/4 + 3/8 = 2/8 + 3/8 = 5/8
So the amount of pizza left for the third person is 1 - 5/8 = 8/8 - 5/8 = 3/8
Therefore, the answer is 3/8.