Transcript Powerpoint for Chapter 5, Lesson 3

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Lesson 5-3 Simplifying Fractions
Example 1 Write Fractions in Simplest Form
Example 2 Write Fractions in Simplest Form
Example 3 Use Fractions to Solve a Problem
Write
in simplest form.
First, find the GCF of the numerator and denominator.
factors of 12: 1, 2, 3, 4, 6, 12
factors of 45: 1, 3, 5, 9, 15, 45
The GCF of 12
and 45 is 3.
Then, divide the numerator and the denominator
by the GCF.
Check Multiply the numerator and denominator of the
answer by the GCF. The result should be the
original fraction.
Answer: So,
written in simplest form is
Write
Answer:
in simplest form.
Write
Answer:
in simplest form.
written in simplest form is
Write
Answer:
in simplest form.
MUSIC Two notes form a perfect fifth if the simplified
fraction of the frequencies of the notes equals
note
Hertz and note
Hertz, do
they form a perfect fifth?
If
The slashes mean that part of the
numerator and part of the denominator
are both divided by the same number.
For example,
1
1
1
1
1
1
Answer: The fraction of the frequency of the notes D and G
is
So, the two notes do form a perfect fifth.
MARBLES In a bag of 96 marbles, 18 of the marbles
are black. Write the fraction of black marbles in
simplest form.
Answer:
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