Solutions by everydaycalculation.com
1st number: 1 4/12, 2nd number: 6/15
1612 - 615 is 1415.
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Related: 32/12-6/15 16/12-12/15 16/24-6/15 16/12-6/30 48/12-6/15 16/12-18/15 16/36-6/15 16/12-6/45 80/12-6/15 16/12-30/15 16/60-6/15 16/12-6/75 16/12-42/15 16/84-6/15
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