Solutions by everydaycalculation.com
1st number: 7/10, 2nd number: 3 0/10
710 - 3010 is -2310.
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Related: 14/10-30/10 7/10-60/10 7/20-30/10 7/10-30/20 21/10-30/10 7/10-90/10 7/30-30/10 35/10-30/10 7/50-30/10 7/10-30/50 49/10-30/10 7/70-30/10 7/10-30/70
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