Solutions by everydaycalculation.com
1st number: 1/28, 2nd number: 6 0/7
128 - 427 is -16728.
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Related: 2/28-42/7 1/28-84/7 1/56-42/7 1/28-42/14 3/28-42/7 1/84-42/7 1/28-42/21 5/28-42/7 1/28-42/35 7/28-42/7 1/28-42/49
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