Solutions by everydaycalculation.com
1st number: 1 2/6, 2nd number: 1 8/10
86 - 1810 is -715.
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Related: 16/6-18/10 8/6-36/10 8/12-18/10 8/6-18/20 24/6-18/10 8/6-54/10 8/18-18/10 8/6-18/30 40/6-18/10 8/6-90/10 8/30-18/10 8/6-18/50 56/6-18/10 8/42-18/10 8/6-18/70
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