Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 4 8/12
3012 - 5612 is -136.
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Related: 60/12-56/12 30/24-56/12 30/12-56/24 90/12-56/12 30/36-56/12 30/12-56/36 30/60-56/12 30/12-56/60 30/84-56/12 30/12-56/84
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