Solutions by everydaycalculation.com
1st number: 8/9, 2nd number: 1 6/9
89 - 159 is -79.
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Related: 16/9-15/9 8/9-30/9 8/18-15/9 8/9-15/18 24/9-15/9 8/9-45/9 8/27-15/9 8/9-15/27 40/9-15/9 8/9-75/9 8/45-15/9 8/9-15/45 56/9-15/9 8/63-15/9 8/9-15/63
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