Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 5 0/7
1021 - 357 is -9521.
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Related: 20/21-35/7 10/21-70/7 10/42-35/7 10/21-35/14 30/21-35/7 10/63-35/7 10/21-35/21 50/21-35/7 70/21-35/7 10/21-35/49
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