Solutions by everydaycalculation.com
1st number: 4 0/18, 2nd number: 4 12/18
7218 - 8418 is -23.
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Related: 72/36-84/18 72/18-84/36 72/54-84/18 72/18-84/54 72/90-84/18 72/18-84/90
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