Solutions by everydaycalculation.com
1st number: 3 0/9, 2nd number: 5 3/9
279 - 489 is -73.
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Related: 54/9-48/9 27/9-96/9 27/18-48/9 27/9-48/18 81/9-48/9 27/9-48/27 27/45-48/9 27/9-48/45 27/63-48/9 27/9-48/63
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