Solutions by everydaycalculation.com
1st number: 3 0/10, 2nd number: 4 0/10
3010 - 4010 is -11.
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Related: 60/10-40/10 30/10-80/10 30/20-40/10 30/10-40/20 90/10-40/10 30/10-40/30 30/50-40/10 30/10-40/50 30/70-40/10 30/10-40/70
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