Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 6 3/12
3012 - 7512 is -154.
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Related: 60/12-75/12 30/24-75/12 30/12-75/24 90/12-75/12 30/36-75/12 30/12-75/36 30/60-75/12 30/12-75/60 30/84-75/12 30/12-75/84
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