Solutions by everydaycalculation.com
1st number: 2 0/2, 2nd number: 5/12
42 - 512 is 1912.
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Related: 8/2-5/12 4/2-10/12 4/2-5/24 12/2-5/12 4/2-15/12 4/6-5/12 4/2-5/36 20/2-5/12 4/2-25/12 4/10-5/12 4/2-5/60 28/2-5/12 4/2-35/12 4/14-5/12 4/2-5/84
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