Solutions by everydaycalculation.com
1st number: 2/12, 2nd number: 3 6/12
212 - 4212 is -103.
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Related: 4/12-42/12 2/12-84/12 2/24-42/12 2/12-42/24 6/12-42/12 2/36-42/12 2/12-42/36 10/12-42/12 2/60-42/12 2/12-42/60 14/12-42/12 2/84-42/12 2/12-42/84
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