1. Comparing & Ordering
Fractions

2. Objectives TSW compare and fractions with like and
unlike denominators using fraction pieces,
drawings, and the butterfly method.
I can compare and order fractions with
like and unlike denominators.

3. Important Words
Numerator
Denominator
Like
Unlike

4. To compare fractions you can draw a picture or use the “Butterfly” method.

5. Draw a picture
Use >, <, or =.
<

6. Comparing with like denominators
You have to look at the parts and find
which one is bigger.

7. Use >, <, or =.
“Butterfly” method 9
< 10
<

8. “Butterfly” method
Use >, <, or =. 12 10
>
>

9. Lesson 2

10. To order fractions you can draw a picture or use the Least Common Denominator (LCD).

11. Order :
least to greatest
Draw a picture

12. Order the fractions from least to greatest., ,

13. One way to compare or order fractions is to express them with the same denominator.

14. Any common denominator could be used
Any common denominator could be used. But the Least Common Denominator (LCD) makes the computation easier.

15. The Least Common Denominator is the Least Common Multiple of the denominators.
LCD = LCM

16. List the fractions in order from greatest to least.
Use LCD
List the fractions in order from greatest to least.

17. Step 1: Find the LCM of the denominators
Use LCD
Step 1: Find the LCM of the denominators

18. Find the LCD:
6, 12, 18, 24, 30, 36, 42, 48…
12, 24, 36, 48 …
9, 18, 27, 36, 45 …
3, 6, 9, 12, 15, 18, 21, 24,
27, 30, 33, 36 …
LCD = 36

19. 6 21 36 36 20 24 36 36 Step 2: Write equivalent fractions. x 6 x 3 x 6

20. Step 3: Compare the numerators
G L 21 6 36 36 24 20 36 36

21. In order from greatest to least:
Use LCD
In order from greatest to least: