algebra
posted by cassie .
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

algebra 
Ms. Sue
7 7/8 = 63/8
3 1/2 = 7/2
(63/8) / (7/2)
(63/8) * (2/7) = 126/56 = 2 1/4 cups
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