Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 1 1/14
121 - 1514 is -4342.
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Related: 2/21-15/14 1/21-30/14 1/42-15/14 1/21-15/28 3/21-15/14 1/21-45/14 1/63-15/14 1/21-15/42 5/21-15/14 1/21-75/14 1/21-15/70 7/21-15/14 1/21-15/98
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