Solutions by everydaycalculation.com
1st number: 2 12/18, 2nd number: 4 12/18
4818 - 8418 is -21.
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Related: 96/18-84/18 48/36-84/18 48/18-84/36 48/54-84/18 48/18-84/54 48/90-84/18 48/18-84/90
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