Solutions by everydaycalculation.com
1st number: 1 1/4, 2nd number: 5/12
54 - 512 is 56.
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Related: 10/4-5/12 5/4-10/12 5/8-5/12 5/4-5/24 15/4-5/12 5/4-15/12 5/12-5/12 5/4-5/36 25/4-5/12 5/4-25/12 5/20-5/12 5/4-5/60 35/4-5/12 5/4-35/12 5/28-5/12 5/4-5/84
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