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Compare Fractions LCD

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Title: Compare Fractions LCD Author: Pasillas Last modified by: Kim Battaglia Created Date: 12/31/1999 4:35:52 PM Document presentation format: On-screen Show (4:3) – PowerPoint PPT presentation

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Title: Compare Fractions LCD


1
WARM UP Finish the Review WS from Friday if it
is not complete. Quiz 1 Chapter 2 on
Friday. Will cover LTs 1 - 11
2
Least Common Denominator
Giant One
Comparing Rational Numbers
Reducing Fractions
3
Learning Targets
  • LT 7 I can compare fractions.
  • Before 1 2 3 After 1 2 3
  • 1 always 2 sometimes 3 not yet

I have these questions
6NS1.1
4
Identity Property
Any number multiplied by one equals itself
n 1 n
This is useful to know so you can find a common
denominator for comparing fractions, and adding
subtracting fractions.
5
Giant One
The Giant One is used to find equivalent
fractions.
It is used to reduce or simplify fractions.
6
What is the LCM used for?
The LCM is used to find common denominators so
that fractions may be easily compared, added, or
subtracted.
 
 
gt
Which is bigger? Five eights or seven twelfth?
Cant tell until we get a common denominator.
Then use Giant one. 8 8, 16, 24, 32, 12 12,
24
7
Comparing Fractions
Which is greater?
Which is bigger? Seven fifteenths or nine
twentieths? Cant tell until we get a common
denominator. Then use Giant one. 15 15, 30, 45,
60, 75, 90 20 20, 40, 60,
8
Use lt or gt to compare the fractions below.
9
THE END! Take out your Learning Targets.
10
Comparing Fractions
LT 7


To compare fractions use a Giant One to find the
same denominator THEN compare.
gt
11
Comparing rational numbers activity.
12
Name___________October 22, 2012 Period___
GREEN BOOK! Page 72 10 24 even, 37a, 44
53 SHOW ALL WORK!
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