Solutions by everydaycalculation.com
1st number: 1 10/20, 2nd number: 2 2/20
3020 - 4220 is -35.
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Related: 60/20-42/20 30/20-84/20 30/40-42/20 30/20-42/40 90/20-42/20 30/60-42/20 30/20-42/60
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