Solutions by everydaycalculation.com
1st number: 4/18, 2nd number: 5 0/18
418 - 9018 is -439.
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Related: 8/18-90/18 4/36-90/18 4/18-90/36 12/18-90/18 4/54-90/18 4/18-90/54 20/18-90/18 4/90-90/18 28/18-90/18
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