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5. 4 6/7 + 6 1/2 =

B.

1. 2/9 - 1/6 =
2. 5/7 - 2/5 =
3. 12 2/5 - 1/4 =
4. 3 1/2 - 2/8 =
5. 3 2/3 - 1 7/8 =