Solutions by everydaycalculation.com
1st number: 7/10, 2nd number: 1 10/30
710 - 4030 is -1930.
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Related: 14/10-40/30 7/10-80/30 7/20-40/30 7/10-40/60 21/10-40/30 7/30-40/30 7/10-40/90 35/10-40/30 7/50-40/30 49/10-40/30 7/70-40/30
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