Solutions by everydaycalculation.com
1st number: 4/21, 2nd number: 1 12/15
421 - 2715 is -169105.
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Related: 8/21-27/15 4/21-54/15 4/42-27/15 4/21-27/30 12/21-27/15 4/21-81/15 4/63-27/15 4/21-27/45 20/21-27/15 4/21-27/75 28/21-27/15
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