Solutions by everydaycalculation.com
1st number: 1 9/15, 2nd number: 1 12/15
2415 - 2715 is -15.
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Related: 48/15-27/15 24/15-54/15 24/30-27/15 24/15-27/30 72/15-27/15 24/15-81/15 24/45-27/15 24/15-27/45 24/75-27/15 24/15-27/75
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