Solutions by everydaycalculation.com
1st number: 8/21, 2nd number: 1 1/7
821 - 87 is -1621.
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Related: 16/21-8/7 8/21-16/7 8/42-8/7 8/21-8/14 24/21-8/7 8/21-24/7 8/63-8/7 8/21-8/21 40/21-8/7 8/21-40/7 8/21-8/35 56/21-8/7 8/21-56/7 8/21-8/49
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