Question

Two ingredients in a recipe are 2 1/2 cups of flour and 1 1/2 cups of sugar. of june keeps the proportion the same, how many cups of flour should she add to 4 cups of sugar

Answer 1

If 2 1/2 cups of flour=1 1/2 cups of sugar
                              ?=4 cups of sugar
4/ 1 1/2*2 1/2=6 2/3 
Therefore she should add 6 2/3 cups of flour to 4 cups of sugar