Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 2 6/7
1021 - 207 is -5021.
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Related: 20/21-20/7 10/21-40/7 10/42-20/7 10/21-20/14 30/21-20/7 10/21-60/7 10/63-20/7 10/21-20/21 50/21-20/7 10/21-20/35 70/21-20/7 10/21-20/49
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