Question

Grace is making 2 ½ batches of muffins for her school’s annual bake sale. If one batch of muffins requires 1 ¼ cups of flour, how many cups of flour does Grace need to make 2 ½ batches of muffins?

Answer 1

2-1/2/1-1/4 = (5/2)/(5/4) = 5/2 x 4/5 = 20/10 = 2 cups flour needed.