Solutions by everydaycalculation.com
1st number: 2 5/20, 2nd number: 8/20
4520 - 820 is 3720.
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Related: 90/20-8/20 45/20-16/20 45/40-8/20 45/20-8/40 45/20-24/20 45/60-8/20 45/20-8/60 45/20-40/20 45/20-56/20
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