Solutions by everydaycalculation.com
1st number: 10/21, 2nd number: 4 9/10
1021 - 4910 is -929210.
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Related: 20/21-49/10 10/21-98/10 10/42-49/10 10/21-49/20 30/21-49/10 10/63-49/10 10/21-49/30 50/21-49/10 10/21-49/50 70/21-49/10 10/21-49/70
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