Solutions by everydaycalculation.com
1st number: 4 2/3, 2nd number: 3/20
143 + 320 is 28960.
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Related: 28/3+3/20 14/3+6/20 14/6+3/20 14/3+3/40 42/3+3/20 14/3+9/20 14/9+3/20 14/3+3/60 70/3+3/20 14/3+15/20 14/15+3/20 98/3+3/20 14/3+21/20 14/21+3/20
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