Solutions by everydaycalculation.com
1st number: 1 2/6, 2nd number: 1 1/7
86 - 87 is 421.
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Related: 16/6-8/7 8/6-16/7 8/12-8/7 8/6-8/14 24/6-8/7 8/6-24/7 8/18-8/7 8/6-8/21 40/6-8/7 8/6-40/7 8/30-8/7 8/6-8/35 56/6-8/7 8/6-56/7 8/42-8/7 8/6-8/49
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