Solutions by everydaycalculation.com
1st number: 1 12/18, 2nd number: 4 12/18
3018 - 8418 is -31.
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Related: 60/18-84/18 30/36-84/18 30/18-84/36 90/18-84/18 30/54-84/18 30/18-84/54 30/90-84/18 30/18-84/90
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