Download - 5.5 Ordering Fractions
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5.5 Ordering Fractions
Objective: Compare and order fractions.
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Mr. WilliamsGESD
[email protected]://mrwilliams.edublogs.org
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Vocabulary
Least Common Denominator (LCD) the least common multiple of the denominators of two fractions.
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Which is larger?
Compare and . Which is larger?34
78
http://www.shodor.org/interactivate/activities/FractionSorter/
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Comparing Fractions using the LCD.
Compare and .56
79
1. Find the LCD: The LCD of 6 and 9 is 18.
56 =
5 x 36 x 3 =
1518
79 =
7 x 29 x 2 =
1418
Which is bigger? 15 1418 18or
5
5 29 9
1 16 8
5 37 4
2 65 15
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Ordering Fractions
Order the fractions , , from least to greatest. 310
25
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1. What is the LCD of 10, 5, and 4? Your right, it's 20!
2. Make equivalent fractions using 20 as the denominator.
3 x 2 610 x 2 20
2 x 4 8 5 x 4 20
1 x 5 54 x 5 20
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Order the following fractions from least to greatest in your math notes!
3 2 54 3 8
5 3 79 4 12
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