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Multiplying Fractions. 7 th Grade Math Lesson Objective: Students will multiply fractions and mixed numbers. Multiply Fraction Rule. To multiply fractions, multiply the numerators and multiply the denominators. Multiply Fractions – Basic. Multiply. Write in simplest form. Rewrite Step:
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Multiplying Fractions 7th Grade Math Lesson Objective: Students will multiply fractions and mixed numbers.
Multiply Fraction Rule • To multiply fractions, multiply the numerators and multiply the denominators.
Multiply Fractions – Basic • Multiply. Write in simplest form. Rewrite Step: Must be on all homework practice.
Practice Session 1 • Multiply. Write in simplest form.
Multiply Fractions – Simplifying before Multiplying • Multiply. Write in simplest form. 1 1 4 1 Rewrite Step: Must be on all homework practice.
Practice Session 2 • Multiply. Write in simplest form.
Multiply Mixed Numbers • Multiply. Write in simplest form. 11 Rename the MN: Mixed numbers must be renamed as fractions greater than one to multiply. 1 Rewrite Step: Must be on all homework practice.
Multiply Mixed Numbers • Multiply. Write in simplest form. 1 Rename the MN: Mixed numbers must be renamed as fractions greater than one to multiply. 1 Rewrite Step: Must be on all homework practice.
Practice Session 3 • Multiply. Write in simplest form.
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. 3 1
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?