Solutions by everydaycalculation.com
1st number: 3/12, 2nd number: 4 1/12
312 - 4912 is -236.
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Related: 6/12-49/12 3/12-98/12 3/24-49/12 3/12-49/24 9/12-49/12 3/36-49/12 3/12-49/36 15/12-49/12 3/60-49/12 3/12-49/60 21/12-49/12 3/84-49/12 3/12-49/84
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