Solutions by everydaycalculation.com
1st number: 1 2/12, 2nd number: 12/21
1412 - 1221 is 2542.
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Related: 28/12-12/21 14/12-24/21 14/24-12/21 14/12-12/42 42/12-12/21 14/12-36/21 14/36-12/21 14/12-12/63 70/12-12/21 14/12-60/21 14/60-12/21 98/12-12/21 14/12-84/21 14/84-12/21
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