Solutions by everydaycalculation.com
1st number: 3 9/12, 2nd number: 2 6/12
4512 - 3012 is 54.
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Related: 90/12-30/12 45/12-60/12 45/24-30/12 45/12-30/24 45/12-90/12 45/36-30/12 45/12-30/36 45/60-30/12 45/12-30/60 45/84-30/12 45/12-30/84
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