Solutions by everydaycalculation.com
1st number: 6/12, 2nd number: 2 6/12
612 + 3012 is 31.
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Related: 6/12+60/12 6/24+30/12 6/12+30/24 18/12+30/12 6/12+90/12 6/36+30/12 6/12+30/36 30/12+30/12 6/60+30/12 6/12+30/60 42/12+30/12 6/84+30/12 6/12+30/84
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