Solutions by everydaycalculation.com
1st number: 5/20, 2nd number: 4 9/10
520 - 4910 is -9320.
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Related: 10/20-49/10 5/20-98/10 5/40-49/10 5/20-49/20 15/20-49/10 5/60-49/10 5/20-49/30 25/20-49/10 5/20-49/50 35/20-49/10 5/20-49/70
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