Solutions by everydaycalculation.com
1st number: 4/21, 2nd number: 13 3/6
421 - 816 is -55942.
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Related: 8/21-81/6 4/42-81/6 4/21-81/12 12/21-81/6 4/63-81/6 4/21-81/18 20/21-81/6 4/21-81/30 28/21-81/6 4/21-81/42
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