Solutions by everydaycalculation.com
1st number: 3/9, 2nd number: 6 2/9
39 + 569 is 599.
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Related: 6/9+56/9 3/18+56/9 3/9+56/18 3/27+56/9 3/9+56/27 15/9+56/9 3/45+56/9 3/9+56/45 21/9+56/9 3/63+56/9 3/9+56/63
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