Solutions by everydaycalculation.com
1st number: 6/15, 2nd number: 1 12/15
615 - 2715 is -75.
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Related: 12/15-27/15 6/15-54/15 6/30-27/15 6/15-27/30 18/15-27/15 6/15-81/15 6/45-27/15 6/15-27/45 30/15-27/15 6/75-27/15 6/15-27/75 42/15-27/15
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