Solutions by everydaycalculation.com
1st number: 5 0/3, 2nd number: 4/21
153 - 421 is 10121.
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Related: 30/3-4/21 15/3-8/21 15/6-4/21 15/3-4/42 45/3-4/21 15/3-12/21 15/9-4/21 15/3-4/63 75/3-4/21 15/3-20/21 15/3-28/21 15/21-4/21
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