Solutions by everydaycalculation.com
1st number: 3 3/6, 2nd number: 5/21
216 - 521 is 13742.
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Related: 42/6-5/21 21/6-10/21 21/12-5/21 21/6-5/42 63/6-5/21 21/6-15/21 21/18-5/21 21/6-5/63 21/6-25/21 21/30-5/21 21/6-35/21 21/42-5/21
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