Solutions by everydaycalculation.com
1st number: 1 9/15, 2nd number: 1 5/15
2415 - 2015 is 415.
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Related: 48/15-20/15 24/15-40/15 24/30-20/15 24/15-20/30 72/15-20/15 24/15-60/15 24/45-20/15 24/15-20/45 24/75-20/15 24/15-20/75
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