Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 6 3/7
1021 - 457 is -12521.
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Related: 20/21-45/7 10/21-90/7 10/42-45/7 10/21-45/14 30/21-45/7 10/63-45/7 10/21-45/21 50/21-45/7 10/21-45/35 70/21-45/7 10/21-45/49
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