Solutions by everydaycalculation.com
1st number: 8/21, 2nd number: 3 7/21
821 - 7021 is -6221.
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Related: 16/21-70/21 8/42-70/21 8/21-70/42 24/21-70/21 8/63-70/21 8/21-70/63 40/21-70/21 56/21-70/21
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