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Objective
Multiply fractions
Review
Vocabulary
Greatest common factor
The greatest of the common factors of two or more
numbers
Example 1 Multiply Fractions
Example 2 Multiply Fractions and Whole Numbers
Example 3 Simplify Before Multiplying
Example 4 Evaluate Expressions
Find

Write problem
Multiply numerators

11
56
Multiply denominators
Simplify numerator
Simplify denominator
Since numerator is 1 we now
the fraction is in simplest terms
Answer:
1/4
Find

Answer:
1/4
Write problem
Find


Put 1 as a denominator on 7
Multiply numerators
Multiply denominators


Answer:
Simplify numerator
Simplify denominator
Since numerator is larger than
denominator, simplify with
calculator
2/4
Find

Answer:
2/4

Find
Write problem
Multiply numerators

Multiply denominators


Simplify numerator
Simplify denominator
63
63  3
Numerator is smaller than
denominator, must find GCF
Answer:
Divide GCF of 3 into
numerator and denominator
3/4
Find

Answer:
3/4
ALGEBRA Evaluate
Write problem

Replace p with
38
49
Replace q with
24  12
36  12
Answer:
Multiply numerators
Multiply denominators
Numerator is smaller than
denominator, must find GCF
Divide GCF of 12 into
numerator and denominator
4/4
*
ALGEBRA Evaluate
Answer:
4/4
Assignment
Lesson 7:2
Multiplying Fractions
13 - 33 All