Solutions by everydaycalculation.com
1st number: 11 1/4, 2nd number: 9/10
454 - 910 is 20720.
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Related: 90/4-9/10 45/4-18/10 45/8-9/10 45/4-9/20 45/4-27/10 45/12-9/10 45/4-9/30 45/4-45/10 45/20-9/10 45/4-9/50 45/4-63/10 45/28-9/10 45/4-9/70
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