Multiplying & Dividing Fractions

Hodge Podge

100

Convert 4 5/10 to an improper fraction

45/10

200

Convert 23/9 to a mixed number

7 2/9

300

When do you use KCF?  Explain the process

KCF is for dividing fractions. Keep the first fraction, change the division to multiplication, flip the numerator and denominator on the second fraction, then solve

400

When multiplying or dividing fractions, you are not finished if your answer is what?

An improper fraction

500

Of the 50 cupcakes at a bakery, 4/5 have vanilla frosting.  Of the cupcakes with vanilla frosting, 2/5 have strawberry filling.  How many cupcakes at the bakery have both vanilla frosting and strawberry filling? 

16 cupcakes

Divide Mixed Numbers

100

1 1/3 ÷ 1/3

4

200

6 2/3 ÷ 2/3

10

300

 6 5/6 ÷ 5 1/3

1 27/96

400

8 2/3 ÷ 2 2/3

3 1/4 or 3 6/24

500

8 2/3 ÷ 1 2/5

6 4/21

Multiply Mixed Numbers

100

1 3/4 x 1 2/4

2 5/8

200

2 1/2 x 3 4 /5

9 1/2

300

3 1/3 x 1 4/10

4 2/3

400

2 4/5 x 1 1/12

3 1/30

500

1 5/8 x 2 6/8

4 15/32

Word Problems-Multiplication

100

There was 5/8 of a pie left in the fridge.  Joseph ate 1.4 of the leftovers.  How much pie did Joseph eat?

5/32 of the pie. 

200

According to a recipe, each batch of pancake mix can make 12 pancakes.  Melia was making 3 batches for a party.  If each batch needs 7/12 a cup of milk, how much milk does she need in total?

1 3/4 cups of milk

300

According to a recipe, Kingston needs 9/20 oz of sugar to make 6 cookies.  Kingston decided to only use 1/3 the amount of sugar to make it healthier.  How much sugar did Kingston use? 

3/20 oz of sugar

400

There was 7/8 pounds of salt in the kitchen.  Declan used 2/15 of the salt when cooking dinner.  How much salt did he use?

He used 7/60 pounds of salt

500

Mateo took 8 glasses out of the cupboard and poured juice from a pitcher.  Each glass can hold 3/10 of a liter of juice.  He was able to fill 6 glasses.  How much juice was in the pitcher?

1 1/5 liter of juice 

Word Problems-Division

100

Bella has a bag of candy.  1/2 of the bag is chocolate.  She splits the chocolate with herself and 3 friends.  How much chocolate does each person get? 

1/8 of the bag

200

Gaige shares 2/7 of his football cards with his four friends.  What fraction of the football cards does each friend recieve?

2/28 or 1/14 of the cards

300

Brantley uses 3/4 of a roll of wrapping paper to wrap five equal-size presents.  How much of the roll of wrapping paper does each present use?

 3/20 of the roll

400

In an aquarium, 3/8 of the fish are clown fish.  The clown fish are shared equally between six fish tanks.  What fraction of the fish in each tank are clown fish?

3/48 or 1/16 of the fish are clown fish

500

Aziza planted 9/10 of a packet of sunflower seeds in six equal rows.  How much of the packet of sunflower seeds does each row contain?

9/60 or 3/20 of the packet