Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 3 0/12
3012 - 3612 is -12.
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Related: 60/12-36/12 30/12-72/12 30/24-36/12 30/12-36/24 90/12-36/12 30/36-36/12 30/60-36/12 30/12-36/60 30/84-36/12 30/12-36/84
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