Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 5 0/12
1512 - 6012 is -154.
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Related: 30/12-60/12 15/24-60/12 15/12-60/24 45/12-60/12 15/36-60/12 15/12-60/36 75/12-60/12 15/60-60/12 15/84-60/12 15/12-60/84
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