Solutions by everydaycalculation.com
1st number: 1/42, 2nd number: 3 4/7
142 - 257 is -14942.
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Related: 2/42-25/7 1/42-50/7 1/84-25/7 1/42-25/14 3/42-25/7 1/42-75/7 1/42-25/21 5/42-25/7 1/42-25/35 7/42-25/7 1/42-25/49
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