Solutions by everydaycalculation.com
1st number: 1/3, 2nd number: 6 3/7
13 - 457 is -12821.
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Related: 2/3-45/7 1/3-90/7 1/6-45/7 1/3-45/14 1/9-45/7 1/3-45/21 5/3-45/7 1/15-45/7 1/3-45/35 7/3-45/7 1/21-45/7 1/3-45/49
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