Solutions by everydaycalculation.com
1st number: 1 4/12, 2nd number: 3 6/12
1612 - 4212 is -136.
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Related: 32/12-42/12 16/12-84/12 16/24-42/12 16/12-42/24 48/12-42/12 16/36-42/12 16/12-42/36 80/12-42/12 16/60-42/12 16/12-42/60 16/84-42/12 16/12-42/84
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