Solutions by everydaycalculation.com
1st number: 1 6/12, 2nd number: 7 6/12
1812 - 9012 is -61.
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Related: 36/12-90/12 18/24-90/12 18/12-90/24 54/12-90/12 18/36-90/12 18/12-90/36 90/12-90/12 18/60-90/12 18/12-90/60 18/84-90/12 18/12-90/84
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