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

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

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

4. Practice Session 1
Multiply. Write in simplest form.

5. Multiply Fractions – Simplifying before Multiplying
Multiply. Write in simplest form. 1 1 4 1
Rewrite Step:
Must be on all homework practice.

6. Practice Session 2
Multiply. Write in simplest form.

7. 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.

8. 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.

9. Practice Session 3
Multiply. Write in simplest form.

10. 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

11. 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?