Solutions by everydaycalculation.com
1st number: 3/21, 2nd number: 4 4/9
321 - 409 is -27163.
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Related: 6/21-40/9 3/21-80/9 3/42-40/9 3/21-40/18 9/21-40/9 3/63-40/9 3/21-40/27 15/21-40/9 3/21-40/45 3/21-40/63
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