Multiplying Fractions (4th Grade)

Look at the visual fraction model. What equation does it express?

• 1/4 x 9 = 9/4 = 2 & 1/4

• 3/4 x 3 = 9/4 = 2 & 1/4

• 3 x 3 = 9

• 3 x 2/3 = 6/3 = 2

This is a fraction model that represents 4/5 x 4. Which expression represents the same amount as a multiple of a unit fraction?

• 1/5 x 8 = 8/5 = 1 & 3/5

• 1/4 x 16 = 16/4 = 4

• 1/5 x 12 = 12/5 = 2 & 2/5

• 1/5 x 16 = 16/5 = 3 & 1/5

Each person on the basketball team had 2/3 of a water bottle. If there are 7 people on the team, how many water bottles did they drink?

• 4 & 2/3 bottles

• 5 bottles

• 4 and 1/3 bottles

• 3 and 2/3 bottles

Jessilyn has a bad habit of opening a new bag of Skittles, even when she hasn't finished the first bag. Today, Jessilyn ate from 7 bags of Skittles, and had 1/2 of each bag. Which equation shows the total amount of bags she ate?

• 7 x 1/3 = 7/3 = 2 & 1/3

• 6 x 1/2 = 6/2 = 3 bags

• 7 x 1/2 = 7/2 = 3 & 1/2 bags

• 6 x 1/3 = 6/3 = 2 bags

Kimber and 3 friends each had a slice of cake after dinner. All the girls had 1/5 of their slice left over. If they put their slices altogether, how much of a piece of cake would they have?

• 3 x 1/5 = 3/5

• 4 x 1/5 = 4/5

• 3 x 1/4 = 3/4

• 4 x 1/4 = 4/4 = 1

Hillary has 3 strips of leather that are 2/5 of a yard long. She is using them for an art project. If she lined them up side by side, how long would the strips be? Which number line models this problem?

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After saving up for a little while, Jamal had $25. He decided to use 1/5 of his money for a new pack of Pokemon cards. He plans on saving the rest. If the Pokemon cards cost $4, will he have enough to complete the purchase?

• Yes, he has $5, so he can purchase the cards for $4.

• Yes, he has $4, so he will have exactly the right amount to purchase the cards.

• No, he has $3, so he will not have enough to purchase the cards.

• Yes, he has $25, so he will have enough to purchase the cards for $4.

Helena made 4/7 of the shots she took at basketball practice. The next day, she made 3 times that amount. How many shots did she make at her second practice? Between which two whole numbers does your answer lie?

• 3 x 4/7 = 6/7

  Between 0 and 1

• 3 x 4/7 = 12/7 = 1 & 5/7

  Between 1 and 2

• 3 x 4/7 = 15/7 = 2 & 1/7

  Between 2 and 3

• 3 x 4/7 = 9/7 = 1 & 2/7

  Between 1 and 2

The model shows 2 x 3/4. Which answer choice shows another way to model the same problem? (Hint: think about unit fractions!)

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Solve:

12 x 4/5 =

• 40/5 = 8

• 38/5 = 7 & 3/5

• 46/5 = 9 & 1/5

• 48/5 = 9 & 3/5