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Adding Fractions and Mixed Numbers with unlike denominators and regrouping

Adding Fractions and Mixed Numbers with unlike denominators and regrouping. Adding fractions with different denominators. Since the denominators are different, we need to find a common denominator before we can add. The LCD of 3 and 4 is 12. 2 3. 8 12. =. 3 4. +. 9 12. =.

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