Solutions by everydaycalculation.com
1st number: 4 0/9, 2nd number: 4 4/9
369 - 409 is -49.
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Related: 72/9-40/9 36/9-80/9 36/18-40/9 36/9-40/18 36/27-40/9 36/9-40/27 36/45-40/9 36/9-40/45 36/63-40/9 36/9-40/63
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