Solutions by everydaycalculation.com
1st number: 1 3/12, 2nd number: 1/21
1512 - 121 is 10184.
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Related: 30/12-1/21 15/12-2/21 15/24-1/21 15/12-1/42 45/12-1/21 15/12-3/21 15/36-1/21 15/12-1/63 75/12-1/21 15/12-5/21 15/60-1/21 15/12-7/21 15/84-1/21
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