Solutions by everydaycalculation.com
1st number: 7 3/6, 2nd number: 5/12
456 - 512 is 8512.
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Related: 90/6-5/12 45/6-10/12 45/12-5/12 45/6-5/24 45/6-15/12 45/18-5/12 45/6-5/36 45/6-25/12 45/30-5/12 45/6-5/60 45/6-35/12 45/42-5/12 45/6-5/84
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