Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 1 1/7
121 - 87 is -2321.
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Related: 2/21-8/7 1/21-16/7 1/42-8/7 1/21-8/14 3/21-8/7 1/21-24/7 1/63-8/7 1/21-8/21 5/21-8/7 1/21-40/7 1/21-8/35 7/21-8/7 1/21-56/7 1/21-8/49
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