Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 1 13/15
2112 - 2815 is -760.
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Related: 42/12-28/15 21/12-56/15 21/24-28/15 21/12-28/30 63/12-28/15 21/12-84/15 21/36-28/15 21/12-28/45 21/60-28/15 21/12-28/75 21/84-28/15
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