Question

1) 7-6/13
2) 3 8/11+2 6/11
3) (4 1/3+1 2/3) - 2 1/4
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Answer 1

1. 7-6/13 = 91/13 - 6/13 = 85/13
2. 3 8/11+2 6/11 = (3+2) + (8/11 + 6/11) = 5 + 14/11 = 5 9/11
3. (4 1/3+1 2/3) - 2 1/4 = (13/3 + 5/3) - (9/4) = 18/3 - 9/4 = (72-27)/12 = 45/12 = 15/4