Solutions by everydaycalculation.com
1st number: 1 10/20, 2nd number: 1 10/20
3020 - 3020 is 01.
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Related: 60/20-30/20 30/20-60/20 30/40-30/20 30/20-30/40 90/20-30/20 30/20-90/20 30/60-30/20 30/20-30/60
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