Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 1 14/21
1021 - 3521 is -2521.
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Related: 20/21-35/21 10/21-70/21 10/42-35/21 10/21-35/42 30/21-35/21 10/63-35/21 10/21-35/63 50/21-35/21 70/21-35/21
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