Solutions by everydaycalculation.com
1st number: 2 0/3, 2nd number: 7/9
63 + 79 is 259.
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Related: 12/3+7/9 6/3+14/9 6/3+7/18 18/3+7/9 6/3+21/9 6/9+7/9 6/3+7/27 30/3+7/9 6/3+35/9 6/15+7/9 6/3+7/45 42/3+7/9 6/3+49/9 6/21+7/9 6/3+7/63
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