Solutions by everydaycalculation.com
1st number: 7/20, 2nd number: 3 5/10
720 - 3510 is -6320.
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Related: 14/20-35/10 7/20-70/10 7/40-35/10 7/20-35/20 21/20-35/10 7/60-35/10 7/20-35/30 35/20-35/10 7/20-35/50 49/20-35/10 7/20-35/70
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