1. Repeating Decimals

2. Example: Write as a fraction
Method 1
First, we need to find r…

3. First, Find the common ratio r…

4. Now use r and a1 in the series formula

5. Example: Write as a fraction
Method 2
Divide the decimal by a series of 9’s…

6. Beware!!…
If you use the easy method, beware of the following type of problem….
You have to think harder…

8. “11-5 Study Guide and Intervention”
Classwork:
“11-5 Study Guide and Intervention”
page 36

9. The part that repeats is 45 (454545….)
So we divide the 45 by 99.
But this gives us …
We want ….
We need to divide by 10 to open the tens decimal space
Then add in the .2 