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Common Denominators
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You need a common denominator to subtract fractions!
A
B
2, 3
6
3, 4
12
4, 5
20
3, 5
15
2, 5
10
2, 4
4
3, 9
9
2, 8
8
3, 6
6
2, 3, 4
12
6, 2
6
9, 3
9
4, 3
12
4, 8
8
5, 4
20
6, 9
18
4, 12
12
2, 7
14
3, 7
21
4, 6
12
Ms. McGowan
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