Solutions by everydaycalculation.com
1st number: 2 10/15, 2nd number: 1 1/15
4015 - 1615 is 85.
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Related: 80/15-16/15 40/15-32/15 40/30-16/15 40/15-16/30 40/15-48/15 40/45-16/15 40/15-16/45 40/15-80/15 40/75-16/15 40/15-16/75
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