Solutions by everydaycalculation.com
1st number: 8/10, 2nd number: 1 2/5
810 - 75 is -35.
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Related: 16/10-7/5 8/10-14/5 8/20-7/5 8/10-7/10 24/10-7/5 8/10-21/5 8/30-7/5 8/10-7/15 40/10-7/5 8/10-35/5 8/50-7/5 8/10-7/25 56/10-7/5 8/10-49/5 8/70-7/5 8/10-7/35
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