Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 4 1/12
3012 - 4912 is -1912.
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Related: 60/12-49/12 30/12-98/12 30/24-49/12 30/12-49/24 90/12-49/12 30/36-49/12 30/12-49/36 30/60-49/12 30/12-49/60 30/84-49/12 30/12-49/84
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