Solutions by everydaycalculation.com
1st number: 3/9, 2nd number: 8 8/9
39 - 809 is -779.
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Related: 6/9-80/9 3/18-80/9 3/9-80/18 3/27-80/9 3/9-80/27 15/9-80/9 3/45-80/9 3/9-80/45 21/9-80/9 3/63-80/9 3/9-80/63
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