Chapter 3.4, Problem 14P

Can the following problems about a bird feeder be solved by subtracting $\frac{3}{4}-\frac{1}{2}?$ If not, explain why not. Solve the problems if they can be solved. Write a different problem about a bird feeder that can be solved by subtracting $\frac{3}{4}-\frac{1}{2}.$

Problem 1 About a Bird Feeder: A bird feeder was filled with $\frac{3}{4}$ of a full bag a bird seed. The birds ate $\frac{1}{2}$ of what was in the bird feeder. What fraction of a full bag of bird seed did the birds eat?

Problem 2 About a Bird Feeder: A bird feeder was filled with $\frac{3}{4}$ of a full bag a bird seed. The birds ate $\frac{1}{2}$ of what was in the bird feeder. What fraction of a full bag of bird seed is left in the bird feeder?