Solutions by everydaycalculation.com
1st number: 8/21, 2nd number: 1 7/8
821 - 158 is -251168.
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Related: 16/21-15/8 8/21-30/8 8/42-15/8 8/21-15/16 24/21-15/8 8/21-45/8 8/63-15/8 8/21-15/24 40/21-15/8 8/21-75/8 8/21-15/40 56/21-15/8 8/21-15/56
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