Solutions by everydaycalculation.com
1st number: 1 6/12, 2nd number: 3/18
1812 + 318 is 53.
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Related: 36/12+3/18 18/12+6/18 18/24+3/18 18/12+3/36 54/12+3/18 18/12+9/18 18/36+3/18 18/12+3/54 90/12+3/18 18/12+15/18 18/60+3/18 18/12+3/90 18/12+21/18 18/84+3/18
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