Solutions by everydaycalculation.com
1st number: 4/21, 2nd number: 1 13/15
421 - 2815 is -176105.
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Related: 8/21-28/15 4/21-56/15 4/42-28/15 4/21-28/30 12/21-28/15 4/21-84/15 4/63-28/15 4/21-28/45 20/21-28/15 4/21-28/75 28/21-28/15
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