Multiply Fractions by Whole Number Word Problems

It takes 6 ⁄8 of a box of nails to build a bird house. If you wanted to build 9 bird houses, how many boxes would you need?

What is the second step when you are multiplying a fraction by a whole number?

• Identify the whole number and the fraction

• Divide the product by the denominator

• Multiply the whole number by the numerator

Mrs. Smith is making cookies for 5th grade. The recipe calls for 3/4 cup of sugar for each batch. It also calls for 4/5 cups of flour. She is making 8 batches and needs to know how much sugar she will need. Which expression represents the correct equation to solve the problem of how much sugar she needs for the cookies?

Sarah and Jane were discussing the following ingredients. Sarah wanted to make 3/4 of the recipe with the ingredients. Jane wanted to make 3 recipes with the ingredients. Which statement represents how Sarah and Jane need to create their recipe?

• Sarah does not have to do anything to the receipe, but Jane needs to multiply her ingredients by 3.

• A

• B

• C

• D

• A

• B

• C

• D

Mrs. Johnson wants to make 5 batches of cookies. The recipe calls for 2/3 cup of flour for each batch. How much flour does she need in total?

• 10/3

• 15/3

• 3/15

• 3/10

Kevin is hosting a pizza party. Each pizza requires 3/4 cup of cheese. If he wants to make 6 pizzas, how much cheese does he need?

• 18/4

• 9/4

• 9/6

• 18/24

• A

• B

• C

• D

• Add

• Subtract

• Multiply

• Divide