Michael is baking cookies. His cookie recipe calls for 1 4/3 cups sugar and makes 24 cookies. If he wants to scale the recipe to make exactly 18 cookies, how many cups of sugar will he need? Express your answer as a mixed number.
+16 1 4/3 = 7/3
So he needs 7/3*1/24 = 7/72 for 1 cookie.
7/72*18 is 126/73 or 7/4
