Solutions by everydaycalculation.com
1st number: 8/10, 2nd number: 3 5/10
810 - 3510 is -2710.
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Related: 16/10-35/10 8/10-70/10 8/20-35/10 8/10-35/20 24/10-35/10 8/30-35/10 8/10-35/30 40/10-35/10 8/50-35/10 8/10-35/50 56/10-35/10 8/70-35/10 8/10-35/70
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