Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 5 3/12
3012 - 6312 is -114.
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Related: 60/12-63/12 30/24-63/12 30/12-63/24 90/12-63/12 30/36-63/12 30/12-63/36 30/60-63/12 30/12-63/60 30/84-63/12 30/12-63/84
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