Develop and sketch concrete models to solve the following problems.

1. You have 2 & 1/2 oranges. If each student serving consists of 3/4 oranges, how many student

servings (or parts thereof) do you have?

2. You have 1 & 1/2 oranges. If this is enough to make 3/5 of an adult servings, how many oranges constitute 1 adult serving?

3. Sarah is making posters by hand to advertise the school play, but the posters she has designed are not the same size as a standard sheet of paper. She has 3 & 1/2 sheets of paper left, which is enough to make 2 & 1/3 posters. How many sheets of paper does each poster use?

4. If Alberto is also making posters, but his posters only use 2/3 of a sheet of paper, how many of Alberto's posters will those 3 & 1/2 sheets of paper make?