Solutions by everydaycalculation.com
1st number: 4 0/3, 2nd number: 1/21
123 - 121 is 8321.
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Related: 24/3-1/21 12/3-2/21 12/6-1/21 12/3-1/42 36/3-1/21 12/3-3/21 12/9-1/21 12/3-1/63 60/3-1/21 12/3-5/21 12/15-1/21 84/3-1/21 12/3-7/21 12/21-1/21
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