Solutions by everydaycalculation.com
1st number: 5 5/9, 2nd number: 7/9
509 - 79 is 439.
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Related: 50/9-14/9 50/18-7/9 50/9-7/18 50/9-21/9 50/27-7/9 50/9-7/27 50/9-35/9 50/45-7/9 50/9-7/45 50/9-49/9 50/63-7/9 50/9-7/63
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