Solutions by everydaycalculation.com
1st number: 1 9/12, 2nd number: 12/16
2112 - 1216 is 11.
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Related: 42/12-12/16 21/12-24/16 21/24-12/16 21/12-12/32 63/12-12/16 21/12-36/16 21/36-12/16 21/12-12/48 21/12-60/16 21/60-12/16 21/12-12/80 21/12-84/16 21/84-12/16
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