Solutions by everydaycalculation.com
1st number: 3 0/10, 2nd number: 3 5/10
3010 - 3510 is -12.
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Related: 60/10-35/10 30/10-70/10 30/20-35/10 30/10-35/20 90/10-35/10 30/10-35/30 30/50-35/10 30/10-35/50 30/70-35/10 30/10-35/70
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