Solutions by everydaycalculation.com
1st number: 1/3, 2nd number: 3 3/7
13 - 247 is -6521.
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Related: 2/3-24/7 1/3-48/7 1/6-24/7 1/3-24/14 1/3-72/7 1/9-24/7 1/3-24/21 5/3-24/7 1/15-24/7 1/3-24/35 7/3-24/7 1/21-24/7 1/3-24/49
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