1) The document provides the agenda for lesson 24 which includes assignments due on Wednesday and a test on Thursday. 2) It lists 5 warm up problems involving operations with fractions such as solving an equation, reducing fractions, and simplifying mixed numbers. 3) The lesson teaches how to use prime factorizations to help simplify fractions and find the greatest common factor of two numbers. It provides 3 examples of reducing fractions using prime factorizations.

1. lesson 24.notebook October 15, 2012
Assignment:
1­­>Set 25 (odds) ­ Due Wednesday (10/17)
2­­>Test #3 ­ Thursday (10/18)
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2. lesson 24.notebook October 15, 2012
Lesson 24 Warm­Up:
1) Solve: 105 = 7
w
2) Find equivalent fractions to 3/4 and 2/3 with
denominators of 12. Then subtract the smaller fraction
from the larger fraction.
3) Write the prime factorization of 400.
4) Write 2 1/4 and 3 1/3 as improper fractions. Then multiply the improper
fractions, and write the product as a reduced mixed number.
5) Simplify:3 5/8 ­ 1 7/8
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3. lesson 24.notebook October 15, 2012
Lesson 24:
*FYI...We can use prime factorization (factor trees) to help us
simplify fractions:
36
120
Or to find the GCF:
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4. lesson 24.notebook October 15, 2012
Examples (Lesson 24):
Use prime factorization to reduce each fraction.
A) 48
144
B) 90
324
C) Find the GCF of 90 and 324.
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5. lesson 24.notebook October 15, 2012
Reduce before multiplying.
D) 5 3
8 10
E) 8 5 9
15 12 10
F) 8 6 5
3 7 16
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