Solutions by everydaycalculation.com
1st number: 2 12/15, 2nd number: 1 13/15
4215 - 2815 is 1415.
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Related: 84/15-28/15 42/15-56/15 42/30-28/15 42/15-28/30 42/15-84/15 42/45-28/15 42/15-28/45 42/75-28/15 42/15-28/75
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