Multiplying by a Fraction

Multiply a fraction by a whole number

Multiply a fraction by a fraction

Fraction word problems

Fraction Models

True or false

100

9 x 4/6

36/6 or 6

100

3/4 x 2/3

6/12

100

A recipe need 1/2 cup of oil. You are making half of the recipe. How much oil do you need? Write an equation and a model to show your work

1/2 x 1/2 = 1/4

You need 1/4 cup of oil

100

See google slide #1

100

1/2 x 6 = 3

True. Half of 6 is 3

1/2 x 6 = 6/2 or 3

200

20 x 1/2

20/2 or 10

200

Create a model to represent 2/3 x 5/6. Solve for the product and write the multiplication equation

2/3 x 5/6 = 10/18

200

Principal Cooper wants to run a race that is 3/4 of a mile. Her shoe was untied for 5/6 of the race. How much of the race was her shoe untied?

5/6 of 3/4

5/6 x 3/4

Her shoe was untied for 14/24 of the race.

200

See google slide #2

200

10/12 x 1/4 = 10/4

False. 10/48

300

7 x 6/7

42/7 or 6

300

1/3 x 6/9

6/27

300

A ribbon is 3/5 of a meter long. You want to use 1/4 of the ribbon to make a bow. How much of the ribbon do you use?

1/4 of 3/5

1/4 x 3/5

You use 3/20 of the ribbon

300

See google slide #3

300

2/5 x 4/5 = 8/5

False. 8/10

400

4 x 3 x 1/2

12/2 or 6

400

1/4 x 1/3 x 1/3

1/36

400

Eddy says that 3/8 of 1/2 is 3/16 because 1/8 of 1/2 is 1/16. Is Eddy correct? Explain why or why not

3/8 x 1/2 = 3/16. Eddy is correct because when you split 1/2 into 8 equal parts, there are 16 parts in the whole. Since 1/8 of 1/2 is 1/16, 3/8 of 1/2 would be 3 of those parts or 3/18

400

See google slide #4

400

6/15 x 1/2 = 6/30

True