Solutions by everydaycalculation.com
1st number: 4 6/9, 2nd number: 5 5/9
429 - 509 is -89.
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Related: 84/9-50/9 42/18-50/9 42/9-50/18 42/27-50/9 42/9-50/27 42/45-50/9 42/9-50/45 42/63-50/9 42/9-50/63
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