Solutions by everydaycalculation.com
1st number: 4 2/3, 2nd number: 3/9
143 + 39 is 51.
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Related: 28/3+3/9 14/3+6/9 14/6+3/9 14/3+3/18 42/3+3/9 14/9+3/9 14/3+3/27 70/3+3/9 14/3+15/9 14/15+3/9 14/3+3/45 98/3+3/9 14/3+21/9 14/21+3/9 14/3+3/63
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