math
posted by irma on .
pauline has 35 cups of flour. She makes cakes that require 2 1/4 cups each. if she makes as many such cakes as she has flour for, how much flour will be left over?

The answer is the greatest integer that is equal to or less than 35/2.25.
Since that ratio is 15.556 (or 15 5/9), you can make 15 cakes.