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.(1 point)

Maria eats 1/4 of the pizza, which leaves 1 - 1/4 = 3/4 of the pizza.

Ahmed eats 3/8 of the pizza, which leaves 3/4 - 3/8 = 3/8 of the pizza for the third person. Answer: \boxed{\frac{3}{8}}.