Solutions by everydaycalculation.com
1st number: 4 0/3, 2nd number: 1 5/7
123 + 127 is 407.
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Related: 24/3+12/7 12/3+24/7 12/6+12/7 12/3+12/14 36/3+12/7 12/3+36/7 12/9+12/7 12/3+12/21 60/3+12/7 12/3+60/7 12/15+12/7 12/3+12/35 84/3+12/7 12/3+84/7 12/21+12/7 12/3+12/49
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