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First you convert the fraction. Example: 2 3/4 - 1 6/9. 2 gives 3 a "boost" to 4/4. Now it is 1 4/4. Then you find the LCD ( least common denomitator) which is 36. 1 4/4 is now 1 36/36 and 2 6/9 is 2 24/36. Last thing you do is subtract 1 36/36 and 2 24/36. But first you put the greater number or "mixed number" before the lowest number. So 2 24/36- 1 36/36= 1 12/36 and reduce it to 1 1/3. Hopefully I am right because I have no clue how to subtract mixed numbers.

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Q: How do you subract and regroup mixed numbers?
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