1
2
3
4
5
100

Find the lowest common denominator

1/2 & 1/8 

8

100

What number is the numerator?

3/6

3

100

Subtract these fractions

5/9 - 3/9

2/9

100

Add these fractions 

1/3 + 3/9

6/9

100

What number is the denominator 

12/24

24

200

Subtract these fractions

6/9 - 3/9

3/9

200

Add these fractions 

5/10 + 4/10

9/10

200

Add these fractions 

2/4 + 2/8

6/8

200

Add these fractions

1/3 + 2/9

5/9

200

Add these fractions 

2/4 + 1/4

3/4

200
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200