Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 3 9/12
1512 + 4512 is 51.
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Related: 30/12+45/12 15/12+90/12 15/24+45/12 15/12+45/24 45/12+45/12 15/36+45/12 15/12+45/36 75/12+45/12 15/60+45/12 15/12+45/60 15/84+45/12 15/12+45/84
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