Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 4/12
2112 - 412 is 1712.
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Related: 42/12-4/12 21/12-8/12 21/24-4/12 21/12-4/24 63/12-4/12 21/36-4/12 21/12-4/36 21/12-20/12 21/60-4/12 21/12-4/60 21/12-28/12 21/84-4/12 21/12-4/84
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