1. 5.1 ordering fractions
November 04, 2013
Objective ­ compare fractions and find the LCM
Agenda
1. WU
2. Check HW
3. Notes
4. HW
5. Discuss goals, hw sheets
Warm Up
Place the following numbers in
order from least to greatest.
4, 1/2, ­3, ­2/3, 1/4
Jan 4­2:26 PM
HW pg. 229 #6­42 multiples of 3
1

2. 5.1 ordering fractions
November 04, 2013
p 235 # 1 ­ 17, 40 ­ 48 all
1. 90
2. 18
3. 60
4. 45
5. 180
6. 84
7. 30
8. 210
9. in 21 days
10. 180
11. 135
43. 120x
12. 280
44. 280a4b2
13. 60
45. 72xy
14. 120xy
46. 36b3c2
15. 200xy
47. 20g2j4
16. 6b2c3
48. 30x3y2
17. 24a 3
40. 5 hot dog packages and 9 bun
packages
41. 1,800
42. 60
Jan 5­11:30 AM
HW pg. 229 #6­42 multiples of 3
2

3. 5.1 ordering fractions
November 04, 2013
Use a number line to graph and compare the fractions.
9 , 6
11 11
­1 , ­ 1
2 10
Jan 5­8:43 AM
HW pg. 229 #6­42 multiples of 3
3

4. 5.1 ordering fractions
November 04, 2013
When fractions have different denominators, rewrite the fractions
with a common denominator. Then compare the numerators.
The math team won 5/8 of its competitions and the debate team won 7/10
of its competitions. Which team won the greater fraction of competitions?
Steps:
1. Find the LCM of 8 and 10
2. Write equivalent fractions with
the new denominator.
3. Compare the fractions
Jan 5­8:48 AM
HW pg. 229 #6­42 multiples of 3
4

5. 5.1 ordering fractions
November 04, 2013
Compare the fractions in each pair.
6 , 4
7 5
­3 , ­7
4 10
Jan 5­8:53 AM
HW pg. 229 #6­42 multiples of 3
5

6. 5.1 ordering fractions
November 04, 2013
Order 1/2, 3/4, and 2/5 from least to greatest. Change to LCD first.
Jan 5­8:54 AM
HW pg. 229 #6­42 multiples of 3
6

7. 5.1 ordering fractions
November 04, 2013
Order from least to greatest . 3/10, 1/5, 1/2, 7/12
Jan 5­8:54 AM
HW pg. 229 #6­42 multiples of 3
7

8. 5.1 ordering fractions
November 04, 2013
Page 229 #6­42
multiples of 3
Jan 5­8:55 AM
HW pg. 229 #6­42 multiples of 3
8