Solutions by everydaycalculation.com
1st number: 6 6/9, 2nd number: 7/9
609 - 79 is 539.
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Related: 60/9-14/9 60/18-7/9 60/9-7/18 60/9-21/9 60/27-7/9 60/9-7/27 60/9-35/9 60/45-7/9 60/9-7/45 60/9-49/9 60/63-7/9 60/9-7/63
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