Solutions by everydaycalculation.com
1st number: 3 0/10, 2nd number: 6 0/10
3010 - 6010 is -31.
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Related: 60/10-60/10 30/20-60/10 30/10-60/20 90/10-60/10 30/10-60/30 30/50-60/10 30/10-60/50 30/70-60/10 30/10-60/70
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