Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 3 4/12
3012 - 4012 is -56.
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Related: 60/12-40/12 30/12-80/12 30/24-40/12 30/12-40/24 90/12-40/12 30/36-40/12 30/12-40/36 30/60-40/12 30/12-40/60 30/84-40/12 30/12-40/84
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