Solutions by everydaycalculation.com
1st number: 1 10/20, 2nd number: 2 9/20
3020 - 4920 is -1920.
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Related: 60/20-49/20 30/20-98/20 30/40-49/20 30/20-49/40 90/20-49/20 30/60-49/20 30/20-49/60
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