Reducing before multiplying fractions
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Reducing Before Multiplying Fractions. NS 2.1 Solve problems involving addition, subtraction, multiplication , and division of positive fractions and explain why a particular operation was used for a given situation. Today’s objective: learn how to multiply fractions

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Presentation Transcript

  • NS 2.1 Solve problems involving addition, subtraction, multiplication, and division of positive fractions and explain why a particular operation was used for a given situation.

  • Today’s objective: learn how to multiply fractions

  • Learning target: Answer at least 3 of the 4 fraction multiplication problems correctly on the exit ticket.


  • Why reduce before multiplying fractions?


  • How are we allowed to reduce fractions before multiplying?



  • What is cross-canceling?

Note: this is different from cross-multiplying! Cross-multiplying is when there is an equals sign in between the two fractions/ratios



  • What if we are multiplying a mixed number?


  • Simplify the same number: the answer if possible.


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