Solutions by everydaycalculation.com
1st number: 3 4/12, 2nd number: 3 6/12
4012 + 4212 is 416.
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Related: 80/12+42/12 40/12+84/12 40/24+42/12 40/12+42/24 40/36+42/12 40/12+42/36 40/60+42/12 40/12+42/60 40/84+42/12 40/12+42/84
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