Solutions by everydaycalculation.com
1st number: 21 1/3, 2nd number: 5/6
643 + 56 is 1336.
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Related: 64/3+10/6 64/6+5/6 64/3+5/12 64/3+15/6 64/9+5/6 64/3+5/18 64/3+25/6 64/15+5/6 64/3+5/30 64/3+35/6 64/21+5/6 64/3+5/42
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