Solutions by everydaycalculation.com
1st number: 4/21, 2nd number: 2 8/21
421 - 5021 is -4621.
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Related: 8/21-50/21 4/42-50/21 4/21-50/42 12/21-50/21 4/63-50/21 4/21-50/63 20/21-50/21 28/21-50/21
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