Multiplying Fractions
Dividing Fractions
Reciprocals
Word Problems
100

1/2  *  5/4  =

5/8

100

4/5 divided by 4

1/5

100

What is the reciprocal of 3?

1/3

100

Divya arrives at a bake sale and 4/5 of the brownie pan is available.  She buys 3/4 of it.  What fraction of the whole brownie pan did Divya buy?

3/5 of the whole brownie pan

200

3  *  5/3  =

5

200

1/2 divided by 2/3

3/4

200

What is the reciprocal of  5/9?

9/5 

200

A car dealership has a lot that is 7/8 full of cars.  During a big promotion, customers bought 2/3 of the cars in the lot.  After the promotion, what fraction of the lot of cars was purchased?

7/12 of the whole lot

300

10/3  *  10/6

50/9  or 5  5/9

300

10 divided by 1/4

40

300

What is the reciprocal of 1/7?

7

300

Cody lived 8 miles from his school.  He rode his bike 2/5 of the way, got a flat tire, and then walked the rest.  How far did he ride his bike?

16/5 miles or 3  1/5 miles

400

2/7*4 1/5

6/5

400

5/9 divided by 1/3

5/3 or 1  2/3

400

What is the reciprocal of 6/5?

5/6

400
It takes 2/3 of a box of nails to build a bird house.  If we want to build 6 bird houses, how many boxes of nails would you need?

4 boxes of nails

500

1/2  * 1  1/2  =

3/4

500

8 2/3 div 2/3


13

500

What is the reciprocal of a/b?

b/a

500

Cathy is making batches of chocolate chip cookies for a bake sale.  Each batch calls for 3/4 of a cup of chocolate chips.  She has a BJ's sized bag of chocolate chips that contains 9 cups.  How many batches of chocolate chip cookies can she make?

12 batches  YUM!

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