Solutions by everydaycalculation.com
1st number: 11 1/4, 2nd number: 8/10
454 - 810 is 20920.
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Related: 90/4-8/10 45/4-16/10 45/8-8/10 45/4-8/20 45/4-24/10 45/12-8/10 45/4-8/30 45/4-40/10 45/20-8/10 45/4-8/50 45/4-56/10 45/28-8/10 45/4-8/70
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