a recipe for chocolate chip cookies calls for 1 1/2 cups of flower. If you are making 2 1/3 recipes, how many cups of flower are needed?

Answer 1

1 1/2 = 3/2
2 1/3 = 7/3

3/2 * 7/3 = 21/6 = 3 3/5 = 3 1/2 cups