Question

Which model can be used to solve this unit fractions division problem?Corol needs 1/3 of a cup of milk for a cake recipe.If she has 5 cups of milk left ,how many cakes can she make?

Answer 1

Answer: 15 cakes

Explanation:

For 1 cake, Carol uses 1/3 cup of milk.

When she has 5 cups of milk left, the number of cake is not known yet.

Let the number of Unknown cakes be y.

1/3 = 1 .... equation i

5 = y..... equation ii

Divide equation I by ii

1/3 / 5 = 1/y

1/15 = 1/y

Cross multiply

Y = 15

She can make 15 cakes from 5 cups of milk