What do you do?
Adding Fractions
Subtracting Fractions
Simplify
100

The first thing you do when adding or subtracting fractions

What is find the least common denominator?

100

1/4 + 2/4

What is 3/4

100

2/4 - 1/4

What is 1/4

100

4/8

1/2

200

How you find the least common denominator 

What is name the multiples

200

1/2 + 1/8

What is 5/8

200

4/8 - 1/4

What is 1/4

200

4/6

2/3

300

What you do after finding the least common denominator

What is change the fraction to have the least common denominator

300

2/6 + 4/9

What is 7/9

300

5/9 - 2/5

What is 7/45

300

4/20

1/5

400

What you do after changing the fraction to have the least common denominator

What is add the fractions

400

4/5 + 6/8

What is 1 11/20

400

1/2 - 12/25

What is 13/50

400

2/16

1/8

500

What you do after adding the fractions

What is simplify if possible

500

4/12 + 4/16

What is 7/12

500

4/12 - 4/14 

What is 1/21

500

12/36

1/3

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