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Comparing Fractions

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Erin Osterman

on 9 December 2013

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Transcript of Comparing Fractions

Comparing Fractions
Parts of a Fraction
Equivalent Fractions
Least Common Multiple:
Comparing Fractions
(Let's put it all together!)
2/3 3/4
Concepts you need to know
(let's review)

Your turn:
Represent this fraction as a pictorial model and on a number line.
Your Turn:
Name 3 equivalent fractions to 1/2 and 2/3.

Turn and Talk:
1. How can you prove fractions are equivalent?
2. Why do we have to multiply or divide both parts of a fraction by the same number? (& what do we call it)
Abbreviated LCM
Need to know your multiples (facts)
Looking for common numbers among the facts.
Your Turn:
Find 2 common multiples for 4 and 6.

What is their LCM?
Step 1: Find a common denominator by finding the LCM of the original denominators.
Step 2: Find equivalent fractions using the LCM as the new denominator
Step 3: Compare the numerators of the equivalent fractions (now that the denominators are the same)
Practice Time
2/3 3/4
2/3 x ___ = ?/12
2/3 3/4
Find the LCM of 3 and 4.
3/4 x ___ = ?/12
__/12 __/12
Your Turn:
Roll the dice at your table 4 times. Use the numbers to create 2 fractions (not improper). Compare those 2 fractions. You may check your work with your partner. Make sure to show all your work!
Your Awesome!!!!
Full transcript