Multiplying and Dividing Fractions
Cross Canceling
Equivalent Fractions
100

to add and subtract fractions they must have the same ______.

What is denominator?

100
The answer to a multiplication problem
What is product?
100

When you cross cancel or do butterfly method, what are you actually doing?

What is dividing?

100

What is an equivalent fraction?

A fraction that has the same value, but looks different

200
When adding fractions with unlike denominators, you must find the ______.
What is the least common denominator?
200
To multiply fractions the denominators must be the same. True or False?
What is false?
200

Rewrite the problem after cross canceling 4/9 x 12/16

1/3 x 4/4

200

How do you create an equivalent fraction?

Multiply or divide the top and bottom by the same number

300

8/12-3/12

What is 5/12?

300
The inverse operation of multiplication.
What is division?
300

Rewrite the problem after cross canceling: 6/10 x 25/15

2/2 x 5/5

300

Create an equivalent fraction: 4/10

Options:

2/5  .... 8/20

400
A fraction can be simplified if they have a common _______.
What is factor?
400

To divide fractions, you multiply by the ________.

What is reciprocal?

400

Rewrite the problem after cross canceling: 1/9 x 12/13

1/3 x 4/13

400

Create an equivalent fraction: 7/8

Options:

14/16.... 21/24.... 70/80

500

14 2/5 - 9 3/8

What is 5 and 1/40?

500
When you multiply fractions, you multiply the numerators and do what to the denominators?
What is multiply?
500

Rewrite the problem after cross canceling: 9/10 x 2/3

3/5 x 1/1

500

Create an equivalent fraction: 3/4

Options:

6/8.... 9/12... 15/20... 30/40

600

4/8 + 2/3

What is 1 1/6

600

There are 3 pizzas. Each child will get 1/4 of a pizza. How many children will get pizza?

12 children will get pizzas.

600

Rewrite the problem after cross canceling: 21/3 x 15/14

3/1 x 5/2

600

Create an equivalent fraction: 6/18

Options:

1/3....2/6.... 12/36... 60/180

700

2/10 + 3/10

What is 5/10

700

3/4 divided by 5/8

What is 1 and 1/5?

700

Rewrite the problem after cross canceling: 12/18 x 9/42

2/2 x 1/7

700

Create an equivalent fraction: 12/15

Options:

4/5  .... 24/30

800

1 2/3 + 2 3/4

What is 4 5/12

800

There are 3 pizzas. Each child will get 1/4 of a pizza. How many children will get pizza?

12 children will get pizza

800

Rewrite the problem after cross canceling: 16/15 x 21/24

2/5 x 7/3

800

Create an equivalent fraction: 8/12

Options:

2/3....4/6... 16/24

900

9/12 - 2/8

What is 1/2?

900

Priya spent 1 and 1/2 days hiking. She was lost 5/6 of the time that she was hiking.What fraction of the time was she lost?

1 and 1/4 of her time was spent lost

900

Are these two fractions equivalent:

3/4 and 24/32

Yes! Multiply by 8/8 to get 24/32

1000

3 1/3 + 2 1/4 + 5 1/9

What is 10 25/36

1000

You have 1/2 of a pizza. You need to split it between 4 people. What fraction of a pizza will each person get?

Each person will get 1/8 of a pizza.

1000

Are these two fractions equivalent?

12/15 and 28/35

Yes!

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