Solutions by everydaycalculation.com
1st number: 14 0/3, 2nd number: 8/15
423 - 815 is 20215.
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Related: 84/3-8/15 42/3-16/15 42/6-8/15 42/3-8/30 42/3-24/15 42/9-8/15 42/3-8/45 42/3-40/15 42/15-8/15 42/3-8/75 42/3-56/15 42/21-8/15
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