Solutions by everydaycalculation.com
1st number: 4/12, 2nd number: 3 6/12
412 - 4212 is -196.
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Related: 8/12-42/12 4/12-84/12 4/24-42/12 4/12-42/24 4/36-42/12 4/12-42/36 20/12-42/12 4/60-42/12 4/12-42/60 28/12-42/12 4/84-42/12 4/12-42/84
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