Download Algebra S2 - Mukwonago Area School District

Algebra S2
REVIEW DAY 1
Factors
 What are factors?
 What are the factors of 20?
factors of 20:
 What is the prime factorization of
20?
What are the common factors?
 Between 15 and 50
15’s factors:
50’s factors:
Common factors:
 Between 9 and 54
9’s factors:
54’s factors:
common factors:
Greatest common factor?
What is the least common multiple?
 What is the LCM for 6 and 4?
 Do you know the rule?
 Write out the prime factorization for each number
 Figure out the common prime factors.
 Take the common prime factors and multiply them by the
prime factors not in common.
6=3•2
4=2•2
Least common multiple is………
12
Reciprocal
What does a reciprocal mean?
Two numbers are reciprocals of each other if their product is 1.
What is the reciprocal of
…..50?
1
…..25
5
?
1
10
?
Adding and Subtracting fractions
12
15
-
2
3
 What is the first thing you have to do?
 Does the denominator change?
Multiplying fractions
5
7
•
2
4
1.) Multiply across
2.) Simplify
Dividing Fractions
8
12
÷
3
4
How do I do it?
Mixed Numbers
Rewrite as a mixed number:
13
5
7
2
Homework
Pg. 762
First 4 from each section
(#1-3, 9-12, 17-20, 25-28, 33-36, 41-44)
Pg. 766
#
1-16, 49-63 (odd)