Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 8 4/7
1021 - 607 is -17021.
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Related: 20/21-60/7 10/42-60/7 10/21-60/14 30/21-60/7 10/63-60/7 10/21-60/21 50/21-60/7 10/21-60/35 70/21-60/7 10/21-60/49
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