lesson 5-3 pages 207-209 simplifying fractions. what you will learn! how to write fractions in...
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Lesson 5-3 Pages 207-209
Simplifying Fractions
What you will learn!
How to write fractions in simplest form.
Equivalent fractionsEquivalent fractionsSimplest formSimplest form
What you really need to know!
Fractions that have the same value are called equivalent fractions. A fraction is in simplest form when the GCF of the numerator and denominator is 1.
12124545
Example 1:
Write in simplest form:
==2 2 •• 2 2 •• 3 33 3 •• 3 3 •• 5 5
441515
40406060
Example 2:
Write in simplest form:
==2 2 •• 2 2 •• 2 2 •• 5 52 2 •• 2 2 •• 3 3 •• 5 5
2233
Example 3:
Two notes form a perfect fifth if the simplified fraction of the frequencies of the notes equals ¾ . If note D = 294 Hertz and note G = 392 Hertz, do they form a perfect fifth?
294294 ÷ 2 = 147÷ 2 = 147 ÷ 7 = 21÷ 7 = 21392392 ÷ 2 = 196÷ 2 = 196 ÷ 7 = 28÷ 7 = 28
2121 ÷ 7 = 3÷ 7 = 32828 ÷ 7 = 4÷ 7 = 4
Yes. It is a perfect fifth!
Page 208
Guided Practice
#’s 4-7
Pages 207-208 with someone at home and study
examples!
Read:
Homework: Page 209
#’s 8-28 all
#’s 30-37
Lesson Check 5-3
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Lesson 5-3
Lesson Check 5-3