Solutions by everydaycalculation.com
1st number: 6 0/10, 2nd number: 8 0/10
6010 - 8010 is -21.
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Related: 60/20-80/10 60/10-80/20 60/30-80/10 60/10-80/30 60/50-80/10 60/10-80/50 60/70-80/10 60/10-80/70
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