Solutions by everydaycalculation.com
1st number: 1/3, 2nd number: 4 4/9
13 - 409 is -379.
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Related: 2/3-40/9 1/3-80/9 1/6-40/9 1/3-40/18 1/9-40/9 1/3-40/27 5/3-40/9 1/15-40/9 1/3-40/45 7/3-40/9 1/21-40/9 1/3-40/63
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