Solutions by everydaycalculation.com
1st number: 11 1/4, 2nd number: 3 3/8
454 - 278 is 638.
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Related: 90/4-27/8 45/4-54/8 45/8-27/8 45/4-27/16 45/4-81/8 45/12-27/8 45/4-27/24 45/20-27/8 45/4-27/40 45/28-27/8 45/4-27/56
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