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# Sums of Mixed Numbers

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
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## Adding Mixed Numbers with Unlike Denominators

by CK-12 //basic
Learn how to add mixed fractions with unlike denominators.
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• Video

## Adding and Subtracting Mixed Numbers

by CK-12 //basic
Watch how to add and subtract mixed numbers without regrouping.
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• Video

by CK-12 //basic
Explains how to add mixed numbers.
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• Video

## Add Mixed Numbers with Like Denominators

by CK-12 //basic
Provides two examples of adding mixed numbers with like denominators.
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• Video