Add
Subtract
Multiply
Divide
Rules
100

2/9 + 2/9

4/9

100

8/10 - 4/10

2/5 

100

1/2 times 3/5

3/10

100

2/5 divide 3/4

8/15

100

Whats the first thing you need to check/do when adding or subtracting fractions?

Common denominator

200

3/4 + 1/10

17/20

200

1/3 - 1/4

1/12

200

3/5 times 1/3

1/5

200

1/3 divide 7

1/21

200

What is an improper fraction?

A fraction where the numerator is greater than the denominator

300

4/5 + 4/10

1 1/5

300

2 - 1/2

1 1/2

300

5 times 3/10

1 1/2

300

9 divide 3/4

12 

300

Do you need a common denominator when multiplying or dividing fractions?

No
400

5 1/3 + 8 1/4 

13 7/12

400

7 4/5 - 2 1/2

5 3/10

400

3 times 2 1/2

7 1/2

400

6/7 divide 8/9

27/28

400

Whats the rules for dividing fractions?

Keep Change Flip (Multiply by recipricoal)

500

1/5 + 2/3 + 1/2

1 11/30

500

5 1/4 - 4 2/5

17/20

500

2 2/5 times 2 1/2

6

500

4 1/2 divide 3 3/5

1 1/4

500

When multiplying and dividing fractions, what should you do first when you see a mixed number?

Change mixed number to improper fraction