Solutions by everydaycalculation.com
1st number: 1/42, 2nd number: 4 0/7
142 - 287 is -16742.
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Related: 2/42-28/7 1/42-56/7 1/84-28/7 1/42-28/14 3/42-28/7 1/42-84/7 1/42-28/21 5/42-28/7 1/42-28/35 7/42-28/7 1/42-28/49
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