Solutions by everydaycalculation.com
1st number: 4 6/9, 2nd number: 3 3/9
429 + 309 is 81.
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Related: 84/9+30/9 42/9+60/9 42/18+30/9 42/9+30/18 42/9+90/9 42/27+30/9 42/9+30/27 42/45+30/9 42/9+30/45 42/63+30/9 42/9+30/63
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