Solutions by everydaycalculation.com
1st number: 3 0/10, 2nd number: 8 0/10
3010 - 8010 is -51.
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Related: 60/10-80/10 30/20-80/10 30/10-80/20 90/10-80/10 30/10-80/30 30/50-80/10 30/10-80/50 30/70-80/10 30/10-80/70
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