Solutions by everydaycalculation.com
1st number: 8/10, 2nd number: 1 5/10
810 - 1510 is -710.
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Related: 16/10-15/10 8/10-30/10 8/20-15/10 8/10-15/20 24/10-15/10 8/10-45/10 8/30-15/10 8/10-15/30 40/10-15/10 8/10-75/10 8/50-15/10 8/10-15/50 56/10-15/10 8/70-15/10 8/10-15/70
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