Solutions by everydaycalculation.com
1st number: 8/18, 2nd number: 1 6/18
818 - 2418 is -89.
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Related: 16/18-24/18 8/18-48/18 8/36-24/18 8/18-24/36 24/18-24/18 8/18-72/18 8/54-24/18 8/18-24/54 40/18-24/18 8/90-24/18 8/18-24/90 56/18-24/18
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