Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 5/21
2112 - 521 is 12784.
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Related: 42/12-5/21 21/12-10/21 21/24-5/21 21/12-5/42 63/12-5/21 21/12-15/21 21/36-5/21 21/12-5/63 21/12-25/21 21/60-5/21 21/12-35/21 21/84-5/21
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