1. Learning Target:
I can
divide fractions
divide decimals.

2. Vocabulary Reciprocal Two numbers that have a product of 1
Flip a fraction upside down
example: 3 and 4

3. Take a look at these:

4. Example 1: I can divide fractions.
Divide. Write the answer in simplest form.
5 11
1 2 ÷
5 11 ÷
1 2
5 11 •
2 1 =
Multiply by the reciprocal.
5 11 •
2 1 =
No common factors.
10 11 =
Simplest form

5. Example 2: I can divide fractions.
Evaluate the expression for the given value of the variable.
4 5
k ÷ for k = 5
Multiply by the reciprocal.
5 4 =
5 1 •
4 5
5 ÷
5 • 5
1 • 4 =
25 4
1 4 6
Divide.

6. Example 3: I can divide fractions.
Divide. Write the answer in simplest form.
3 8 2 ÷ 2
3 8 ÷ 2 =
19 8
2 1 ÷
Write as an improper fraction. =
19 8
1 2
Multiply by the reciprocal.
19 • 1
8 • 2 =
No common factors
19 16 =
3 16 = 1
19 ÷ 16 = 1 R 3

7. Ex 1: I can divide decimals
Find ÷ 0.24.
0.384
0.24
0.384 ÷ 0.24 =
100
38.4 24 =
38.4 24 =
Divide. =
1.6

8. Example 2: I can divide decimals.
Find ÷ 0.25.
0.585
0.25
0.585 ÷ 0.25 =
100
58.5 25 =
58.5 25 =
Divide. =
2.34

9. Do you have the learning targets mastered?

10. Lesson quiz: I can divide fractions.
Divide. Write the answer in simplest form.
7 15
3 4 ÷
7 15 ÷
3 4
7 15 •
4 3 =
Multiply by the reciprocal.
7 • 4
15 • 3 =
No common factors.
28 45 =
Simplest form

11. Lesson Quiz: I can divide decimals
–12 ÷ 2.5
A. –4.8
B. –4.3 C
D. 5.2

12. Assignment: page 17, problems 24-46 evens, 47, 48, 50, 54-56