Solutions by everydaycalculation.com
1st number: 5 0/9, 2nd number: 5 4/9
459 - 499 is -49.
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Related: 90/9-49/9 45/9-98/9 45/18-49/9 45/9-49/18 45/27-49/9 45/9-49/27 45/9-49/45 45/63-49/9 45/9-49/63
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