Solutions by everydaycalculation.com
1st number: 2 6/12, 2nd number: 1 6/12
3012 - 1812 is 11.
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Related: 60/12-18/12 30/12-36/12 30/24-18/12 30/12-18/24 90/12-18/12 30/12-54/12 30/36-18/12 30/12-18/36 30/12-90/12 30/60-18/12 30/12-18/60 30/84-18/12 30/12-18/84
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