Solutions by everydaycalculation.com
1st number: 2 11/12, 2nd number: 12/21
3512 - 1221 is 19784.
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Related: 70/12-12/21 35/12-24/21 35/24-12/21 35/12-12/42 35/12-36/21 35/36-12/21 35/12-12/63 35/12-60/21 35/60-12/21 35/12-84/21 35/84-12/21
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