Solutions by everydaycalculation.com
1st number: 4 6/12, 2nd number: 4 0/12
5412 - 4812 is 12.
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Related: 54/12-96/12 54/24-48/12 54/12-48/24 54/36-48/12 54/12-48/36 54/60-48/12 54/12-48/60 54/84-48/12 54/12-48/84
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