Solutions by everydaycalculation.com
1st number: 1 5/15, 2nd number: 12/15
2015 - 1215 is 815.
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Related: 40/15-12/15 20/15-24/15 20/30-12/15 20/15-12/30 60/15-12/15 20/15-36/15 20/45-12/15 20/15-12/45 20/15-60/15 20/75-12/15 20/15-12/75 20/15-84/15
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