Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 6/12
2112 - 612 is 54.
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Related: 42/12-6/12 21/24-6/12 21/12-6/24 63/12-6/12 21/12-18/12 21/36-6/12 21/12-6/36 21/12-30/12 21/60-6/12 21/12-6/60 21/12-42/12 21/84-6/12 21/12-6/84
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