Solutions by everydaycalculation.com
1st number: 1/21, 2nd number: 8 4/7
121 - 607 is -17921.
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Related: 2/21-60/7 1/42-60/7 1/21-60/14 3/21-60/7 1/63-60/7 1/21-60/21 5/21-60/7 1/21-60/35 7/21-60/7 1/21-60/49
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