Solutions by everydaycalculation.com
1st number: 6 6/9, 2nd number: 5/9
609 + 59 is 659.
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Related: 60/9+10/9 60/18+5/9 60/9+5/18 60/9+15/9 60/27+5/9 60/9+5/27 60/9+25/9 60/45+5/9 60/9+5/45 60/9+35/9 60/63+5/9 60/9+5/63
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