Solutions by everydaycalculation.com
1st number: 1 6/12, 2nd number: 3 6/12
1812 + 4212 is 51.
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Related: 36/12+42/12 18/12+84/12 18/24+42/12 18/12+42/24 54/12+42/12 18/36+42/12 18/12+42/36 90/12+42/12 18/60+42/12 18/12+42/60 18/84+42/12 18/12+42/84
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