14 1/6 - (8 9/10 - b) b = 5 2/3
85/6 - 89/10 + 5 2/3 = 85/6 - 89/10 + 17/3 = 85/6 + 34/6 - 89/10 = 119/6 - 89/10 = 119*5/30 - 89*3/30 = (595 - 267)/30 = 328/30 = 164/15 = 10 14/15
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14 1/6 - (8 9/10 - b) b = 5 2/3
85/6 - 89/10 + 5 2/3 = 85/6 - 89/10 + 17/3 = 85/6 + 34/6 - 89/10 = 119/6 - 89/10 = 119*5/30 - 89*3/30 = (595 - 267)/30 = 328/30 = 164/15 = 10 14/15
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