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LP5 fraction reps.notebook
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September 22, 2015
Warm Up: Write as a mixed number:
Write as an improper fraction:
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September 22, 2015
Comparing Fractions
equivalent fractions
Rewrite with a denominator of 15.
Example:
Try it out:
Try another:
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September 22, 2015
More
Examples:
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reducing to
lowest term
s:What does lowest terms mean?
Method 1: Find any common factor & continue to divide until
it is in lowest terms
Method 2: Find the greatest common factor (GCF) & divide
once to get lowest terms
ExampleExample
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Write each of the following in lowest terms:
In roof construction, the pitch, or steepness of the roof is defined as the fraction pitch=rise/run (slope). If the rise is 8 feet and the run is 24 feet, what is the pitch?
Calculate the pitch of a storage shed with a rise of 6 ft and a run of 36 ft.
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Comparing Fractions...
1) Find a common denominator2) Compare the numerators
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A 5/8 inch drill bit is too small for a job and a 3/4 inch drill bit is too large. What size drill be should be tried next?
If a 3/8 inch drill bit is too small for a job, and a 1/2 inch drill bit is too large for a job, what size should be tried next?
Circle the larger quantity in each example below:
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Why might you choose to leave a fraction unreduced?
Homework: pg. 7475 D) 46, E)57, F) 45d) Complete.
4) 5) 6)
e) Which is larger?
6) 7) 8)
f) Practical Problems.
4) Sheet Metal Trades. Which is thicker, a -in.
sheet of metal or a -in. fastener?
5) Plumbing. Is it possible to have a -in pipe
with an inside diameter of -in.?
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Exit Card
Grade:«grade»Subject:«subject»
Date:«date»
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September 22, 2015
1 Why might you choose to leave a fraction unreduced?