1. lesson 30.notebook November 05, 2012
Assignment:
1­­>Set 30 (thirds) ­ Due Thursday (11/8)
2­­>Test #4 Review Handout ­ Due Thursday (11/8)
3­­>Test #4 Thursday (11/8)
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2. lesson 30.notebook November 05, 2012
Lesson 30 Warm­Up:
1) Simplify: 6 1/3 ­ 5 2/3
2) Complete the equivalent fraction: 2 ?
=
7 35
3) Convert 7 feet 10 inches to inches.
4) Estimate the sum of 6143 and 4952.
5) What is 3/5 of 20?
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3. lesson 30.notebook November 05, 2012
Lesson 30:
*To add or subtract fractions or mixed numbers...you must have
COMMON DENOMINATORS!
*Write 3 equivalent fractions for 1/2 ­
*Write a fraction equivalent to 1/2 with a denominator of 40 ­
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4. lesson 30.notebook November 05, 2012
Examples (Lesson 30):
Write each fraction so that they have common denominators.
Then compare them.
A) 3/5 7/10
B) 5/12 7/15
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5. lesson 30.notebook November 05, 2012
Add or subtract.
C) 3/4 + 5/6 + 3/8
D) 7 5/6 ­ 2 1/2
E) 4 1/6 ­ 2 5/9
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6. lesson 30.notebook November 05, 2012
F) Use common denominators to arrange these fractions in
order from least to greatest:
1/2 3/10 2/5
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