Question

Keith wants to make cupcakes. To make cupcakes he needs 1 3/10 cups of flour per batch of cupcakes. If Keith has 13 cups of flour,then how many batches of cupcakes can Keith make?

Answer 1

Answer: Keith can make 10 batches of cupcakes.

Explanation:

To make cupcakes, he needs 1 3/10 cups of flour per batch of cupcakes. Converting 1 3/10 cups of flour into improper fraction, it becomes 13/10 cups of flour.

Let x represent the number of batches of cupcakes that Keith can make If Keith has 13 cups of flour, . Therefore,

13/10 cups of flour = 1 batch of cupcakes

13 cups of flour = x batch of cupcakes

Cross multiplying, it becomes

13/10 × x = 13 × 1

13x/10 = 13

13x = 13 × 10 = 130

x = 130/13 = 10