2. Chapter 3, Lesson 3D Pages 168-173
Divide fractions

3. Learning Objectives and Vocab.
I can divide fractions and mixed numbers.
Standard: 7.NS.2, 7.NS.2b, 7.NS.3, 7.EE.3
Vocabulary:

5. Solve:
8 ÷ 2
9 ÷ 3
12 ÷ 4
24 ÷ 6
100 ÷ 25
8 x 1/2
9 x 1/3
12 x 1/4
24 x 1/6
100 x 1/25
Dividing by a whole #
Multiplying by a fraction

6. What’s the difference between the problems?
Look at your answers.
Are they the same?
What’s the difference between the problems?
What is the relationship between the second number in each problem?

7. Reciprocal
When you flip the second fraction, you are writing that fraction’s reciprocal. 3 5 5 3

8. Reciprocals
÷ ½ =
÷ ¼ =
÷ 1/5=
÷ 2/3 =

9. Keep/Switch/Flip

10. Examples

11. Mixed Numbers What did we have to do to multiply mixed numbers?
We will have to do the same thing for division.
Change mixed numbers to improper fractions.
Keep/Switch/Flip

12. Examples

13. Real-World Problem

14. Homework