Solutions by everydaycalculation.com
1st number: 5/10, 2nd number: 2 0/10
510 - 2010 is -32.
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Related: 5/10-40/10 5/20-20/10 15/10-20/10 5/10-60/10 5/30-20/10 5/10-20/30 25/10-20/10 5/50-20/10 5/10-20/50 35/10-20/10 5/70-20/10 5/10-20/70
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