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Published byChris Boyce Modified about 1 year ago

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Multiplying Fractions 7 th Grade Math Lesson Objective: Students will multiply fractions and mixed numbers.

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Multiply Fraction Rule To multiply fractions, multiply the numerators and multiply the denominators.

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Multiply Fractions – Basic Multiply. Write in simplest form. Rewrite Step: Must be on all homework practice.

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Practice Session 1 Multiply. Write in simplest form.

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Multiply Fractions – Simplifying before Multiplying Multiply. Write in simplest form. Rewrite Step: Must be on all homework practice. 1 41 1

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Practice Session 2 Multiply. Write in simplest form.

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Multiply Mixed Numbers Multiply. Write in simplest form. Rewrite Step: Must be on all homework practice. Rename the MN: Mixed numbers must be renamed as fractions greater than one to multiply. 1 11

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Multiply Mixed Numbers Multiply. Write in simplest form. Rewrite Step: Must be on all homework practice. Rename the MN: Mixed numbers must be renamed as fractions greater than one to multiply. 1 1

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Practice Session 3 Multiply. Write in simplest form.

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Real World Example The house cat has an average lifespan that is 4/5 of a lion’s. If a lion’s lifespan is 15 years, find the average lifespan of a house cat. 1 3

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Practice Session 4 Each DVD storage case is about 1/5 inch thick. What will be the height of 12 cases sold together in plastic wrapping?

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