Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 1 2/14
1021 - 1614 is -23.
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Related: 20/21-16/14 10/21-32/14 10/42-16/14 10/21-16/28 30/21-16/14 10/21-48/14 10/63-16/14 10/21-16/42 50/21-16/14 10/21-80/14 10/21-16/70 70/21-16/14 10/21-16/98
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