Solutions by everydaycalculation.com
1st number: 2 5/20, 2nd number: 4/10
4520 - 410 is 3720.
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Related: 90/20-4/10 45/20-8/10 45/40-4/10 45/20-4/20 45/20-12/10 45/60-4/10 45/20-4/30 45/20-20/10 45/20-4/50 45/20-28/10 45/20-4/70
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