Solutions by everydaycalculation.com
1st number: 10/18, 2nd number: 2 4/6
1018 - 166 is -199.
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Related: 20/18-16/6 10/18-32/6 10/36-16/6 10/18-16/12 30/18-16/6 10/18-48/6 10/54-16/6 10/18-16/18 50/18-16/6 10/18-80/6 10/90-16/6 10/18-16/30 70/18-16/6 10/18-16/42
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