Solutions by everydaycalculation.com
1st number: 11 1/4, 2nd number: 18 0/4
454 + 724 is 1174.
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Related: 90/4+72/4 45/8+72/4 45/4+72/8 45/12+72/4 45/4+72/12 45/20+72/4 45/4+72/20 45/28+72/4 45/4+72/28
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