Solutions by everydaycalculation.com
1st number: 4/28, 2nd number: 11 1/4
428 - 454 is -31128.
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Related: 8/28-45/4 4/28-90/4 4/56-45/4 4/28-45/8 12/28-45/4 4/84-45/4 4/28-45/12 20/28-45/4 4/28-45/20 4/28-45/28
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