Solutions by everydaycalculation.com
36 - 79 is -518.
Related: 3/6-14/9 3/12-7/9 3/6-7/18 9/6-7/9 3/6-21/9 3/18-7/9 3/6-7/27 15/6-7/9 3/6-35/9 3/30-7/9 3/6-7/45 21/6-7/9 3/6-49/9 3/42-7/9 3/6-7/63
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