Solutions by everydaycalculation.com
1st number: 3/10, 2nd number: 2 20/30
310 - 8030 is -7130.
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Related: 6/10-80/30 3/20-80/30 3/10-80/60 9/10-80/30 3/30-80/30 3/10-80/90 15/10-80/30 3/50-80/30 21/10-80/30 3/70-80/30
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