Solutions by everydaycalculation.com
1st number: 3 0/9, 2nd number: 5 3/9
279 + 489 is 253.
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Related: 54/9+48/9 27/9+96/9 27/18+48/9 27/9+48/18 81/9+48/9 27/9+48/27 27/45+48/9 27/9+48/45 27/63+48/9 27/9+48/63
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