Solutions by everydaycalculation.com
1st number: 2 4/6, 2nd number: 7 7/8
166 - 638 is -12524.
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Related: 32/6-63/8 16/12-63/8 16/6-63/16 48/6-63/8 16/18-63/8 16/6-63/24 80/6-63/8 16/30-63/8 16/6-63/40 16/42-63/8 16/6-63/56
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