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Description:
 Add two fractions or mixed numbers, often with different denominators.  This is the true test of fraction addition mastery. You will likely need pencil and paper.
  
 Adaptive Learning Progression: The fractions to add increasingly become more complex.  | 
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Sample Levels (out of 12)
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 Add each pair of fractions and simplify the result.  | |
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 Add each pair of fractions and simplify the result.  | |
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 Add each pair of fractions and simplify the result.  | |
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 Add each pair of fractions and simplify the result.  | 
