Solutions by everydaycalculation.com
1st number: 4 12/18, 2nd number: 5 8/18
8418 - 9818 is -79.
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Related: 84/36-98/18 84/18-98/36 84/54-98/18 84/18-98/54 84/90-98/18 84/18-98/90
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