Solutions by everydaycalculation.com
1st number: 4 0/3, 2nd number: 3 5/9
123 + 329 is 689.
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Related: 24/3+32/9 12/3+64/9 12/6+32/9 12/3+32/18 36/3+32/9 12/3+96/9 12/9+32/9 12/3+32/27 60/3+32/9 12/15+32/9 12/3+32/45 84/3+32/9 12/21+32/9 12/3+32/63
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