Solutions by everydaycalculation.com
1st number: 3 6/12, 2nd number: 4 1/12
4212 - 4912 is -712.
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Related: 84/12-49/12 42/12-98/12 42/24-49/12 42/12-49/24 42/36-49/12 42/12-49/36 42/60-49/12 42/12-49/60 42/84-49/12 42/12-49/84
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