Solutions by everydaycalculation.com
1st number: 1/3, 2nd number: 1 7/9
13 - 169 is -139.
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Related: 2/3-16/9 1/3-32/9 1/6-16/9 1/3-16/18 1/3-48/9 1/9-16/9 1/3-16/27 5/3-16/9 1/3-80/9 1/15-16/9 1/3-16/45 7/3-16/9 1/21-16/9 1/3-16/63
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