If you made 3 1/2 dozen cookies and used 7 7/8 cups of flour, how much flour do you use for each dozen

1 answer

7 7/8 = 63/8
3 1/2 = 7/2

(63/8) / (7/2)
(63/8) * (2/7) = 126/56 = 2 1/4 cups