Solutions by everydaycalculation.com
1st number: 7/10, 2nd number: 3 5/10
710 - 3510 is -145.
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Related: 14/10-35/10 7/10-70/10 7/20-35/10 7/10-35/20 21/10-35/10 7/30-35/10 7/10-35/30 35/10-35/10 7/50-35/10 7/10-35/50 49/10-35/10 7/70-35/10 7/10-35/70
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