Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 2 3/12
2112 - 2712 is -12.
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Related: 42/12-27/12 21/12-54/12 21/24-27/12 21/12-27/24 63/12-27/12 21/12-81/12 21/36-27/12 21/12-27/36 21/60-27/12 21/12-27/60 21/84-27/12 21/12-27/84
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