Solutions by everydaycalculation.com
1st number: 4/18, 2nd number: 3 10/18
418 - 6418 is -103.
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Related: 8/18-64/18 4/36-64/18 4/18-64/36 12/18-64/18 4/54-64/18 4/18-64/54 20/18-64/18 4/90-64/18 4/18-64/90 28/18-64/18
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