Question

A recipe for chocolate chip cookies calls for 1 1/4 cups of flour. If you are making 2 1/4 recipes, how many cups of flour are needed?

Answer 1

☞According to the problem,

1 recipe = 5/4 cups of flour

For making 9/4 recipes,

1 : 5/4 = x : 9/4

= 1: 5 = x : 9

=x = 9/5

= x = 1 4/5