Solutions by everydaycalculation.com
1st number: 4 4/9, 2nd number: 5 5/9
409 - 509 is -109.
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Related: 80/9-50/9 40/18-50/9 40/9-50/18 40/27-50/9 40/9-50/27 40/45-50/9 40/9-50/45 40/63-50/9 40/9-50/63
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