Solutions by everydaycalculation.com
1st number: 5 0/18, 2nd number: 10/18
9018 - 1018 is 409.
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Related: 90/18-20/18 90/36-10/18 90/18-10/36 90/18-30/18 90/54-10/18 90/18-10/54 90/18-50/18 90/18-10/90 90/18-70/18
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