Chapter 4Lesson 2

Objective

•Write proper and improper fractions as equivalent fractions or mixed number in lowest terms

Rule

For all numbers a and b (b≠0 and c≠0)

a a c

b b c

/

/

a a c

b b c

Example 1

Write an equivalent fraction with a denominator of 12.

a. 5/6 b. -32/48

Vocabulary

•Lowest Terms: when a numerator and denominator have no common factor other than 1

•Prime Number: A whole number great than one whose only factors are 1 and itself.

Example 2

Write 84/120 as an equivalent fraction in lowest terms.

Prime Factorization:

List:

Vocabulary•Relatively Prime: When two whole number

have no common factor other than 1.•Proper Fraction: When the numerator is

less than the denominator,•Improper Fraction: When the numerator

is greater than the denominator•Mixed Number: A number consisting of a

whole number and a fraction.•Simple Form: When fractional part is in

lowest terms.

Example 3

•Write as a mixed number in simplest form.

a) 12/8

b) -12/8

Example 4

•Write 7 as an improper fraction.2

5

Guided Practice

State an equivalent fraction in lowest terms1) 12/36

2) 60/132

3) -30/45

4) 14/63

Guided Practice

Write as a mixed number in simplest form.1) 24/5

2) 16/3

3) -49/14

4) -402/20

Guided Practice

Write as a improper fraction.1)

2)

3)

4)

233

519

145

7110

Homework

Pg. 118; 6-43 (mult. of 3)