Solutions by everydaycalculation.com
1st number: 1 12/18, 2nd number: 2 13/18
3018 - 4918 is -1918.
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Related: 60/18-49/18 30/18-98/18 30/36-49/18 30/18-49/36 90/18-49/18 30/54-49/18 30/18-49/54 30/90-49/18 30/18-49/90
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