Solutions by everydaycalculation.com
1st number: 2 2/3, 2nd number: 5/7
83 + 57 is 7121.
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Related: 16/3+5/7 8/3+10/7 8/6+5/7 8/3+5/14 24/3+5/7 8/3+15/7 8/9+5/7 8/3+5/21 40/3+5/7 8/3+25/7 8/15+5/7 8/3+5/35 56/3+5/7 8/3+35/7 8/21+5/7 8/3+5/49
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