Answer:
5 7/8
Explanation:
12 3/4 = 12 6/8
1 3/8 = 1 3/8
5 1/2 = 5 4/8
1 3/8+5 4/8 = 6 7/8
12 6/8 = 11 14/8
11 14/8-6 7/8 = 5 7/8
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