Solutions by everydaycalculation.com
1st number: 4 2/3, 2nd number: 5/15
143 + 515 is 51.
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Related: 28/3+5/15 14/3+10/15 14/6+5/15 14/3+5/30 42/3+5/15 14/9+5/15 14/3+5/45 70/3+5/15 14/3+25/15 14/15+5/15 14/3+5/75 98/3+5/15 14/3+35/15 14/21+5/15
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