QUESTIONS?
Ms. Ogden: 757-636-6161
Brittani.ogden@dc.gov
Χ
Use a PENCIL!
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Name ___________________________________
Date ____________________________________
College __________________________________
Try every problem
Show ALL Work!
26
CUA
Directions: Complete the Venn Diagrams for the factors and multiples.
1.)
2.)
Factors of 21
Factors of 20
Factors of 12
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
_____ x ______
Factors of 16
Common
Factors
The GCF is ______________
Common
Factors
The GCF is ______________
3.) In my own words, I can find the greatest common factor by _____________________________
______________________________________________________________________________________________
4.)
5.)
Multiples of 2.
___ x 1 =
Common
___ x 2 =
Multiples
___ x 3 =
___ x 4 =
___ x 5 =
___ x 6 =
___ x 7 =
___ x 8 =
___ x 9 =
____ x 10 =
Multiples of 5.
___ x 1 =
___ x 2 =
___ x 3 =
___ x 4 =
___ x 5 =
___ x 6 =
___ x 7 =
___ x 8 =
___ x 9 =
____ x 10 =
The LCM is ______________
Multiples of 3.
Common
___ x 1 =
Multiples
___ x 2 =
___ x 3 =
___ x 4 =
___ x 5 =
___ x 6 =
___ x 7 =
___ x 8 =
___ x 9 =
____ x 10 =
Multiples of 7.
___ x 1 =
___ x 2 =
___ x 3 =
___ x 4 =
___ x 5 =
___ x 6 =
___ x 7 =
___ x 8 =
___ x 9 =
____ x 10 =
The LCM is ______________
6.) The difference between the least common multiple and the greatest common factor is _____________
_______________________________________________________________________________________
QUESTIONS?
Ms. Ogden: 757-636-6161
Brittani.ogden@dc.gov
Χ
Use a PENCIL!
Name ___________________________________
Date ____________________________________
College __________________________________
Try every problem
Show ALL Work!
Proper Heading
Directions: Write the ratio in three ways for the following scenarios.
1. What is the ratio of circles to squares?
# of circles = ________
# of squares = _______

Fraction
Words
2. What is the ratio of spiders to webs?
Colon
# of spiders = ________
# of webs = _______

Fraction
Words
3. What is the ratio of locks to keys?
Colon
# of locks = _________
# of keys = ________
 
Fraction
Words
Colon
4. The table below shows the number of students and their favorite sports.
Favorite Sport
Number of Students
Soccer
4
Baseball
3
Basketball
11
Football
9
a) What is the ratio of students who love basketball to students who love soccer?
Fraction
Words
Colon
b) What is the ratio of students who love football to total students?
Fraction
Words
Colon
QUESTIONS?
Ms. Ogden: 757-636-6161
Brittani.ogden@dc.gov
Χ
Use a PENCIL!
Proper Heading
Name ___________________________________
Date ____________________________________
College __________________________________
Try every problem
Show ALL Work!
28
CUA
Directions: Use the table below to answer the following ratio questions.
1. The table below shows the number of JA staff members and their favorite desserts.
Dessert
Number of JA Staff
Pumpkin Pie
6
Chocolate Cake
12
Oatmeal Raisin Cookies
5
Apple Pie
9
Total
a) What is the ratio of staff who love chocolate cake to staff who love oatmeal raisin cookies?
# of staff who love chocolate cake = ________ # of staff who love oatmeal raisin cookies = ________
This is a part – to - _________________ ratio.
Fraction
Words
Colon
b) What is the ratio of staff who love apple pie to staff who love pumpkin pie?
# of staff who love apple pie = ____________
# of staff who love pumpkin pie = __________
This is a part – to – _____________________ ratio.
Fraction
Words
Colon
c) What is the ratio of staff who love chocolate cake to total staff at Jefferson?
# of staff who love chocolate cake = ___________
Total # of JA staff = ________
This is a part – to – _______________________ ratio.
Fraction
Words
Colon
QUESTIONS?
Ms. Ogden: 757-636-6161
Brittani.ogden@dc.gov
Χ
Use a PENCIL!
Proper Heading
Name ___________________________________
Date ____________________________________
College __________________________________
Try every problem
Show ALL Work!
29
CUA
Ratio Review
Part 1: Using the pictures, write the ratio in 3 ways.
Fraction
Part 2: Using the real-world scenarios, write the ratio in words.
Part 3: Reducing Ratios
Words
Colon
1. 50:35
Factors of 27.
Factors of 9.
____ x ____ = 27
____ x ____ = 9
____ x ____ = 27
____ x ____ = 9
The GCF is _________.
Reduced Ratio
÷
Fraction
Words
Colon
÷
2. 49:21
Factors of 49.
Factors of 21.
____ x ____ = 49
____ x ____ = 21
____ x ____ = 49
____ x ____ = 21
The GCF is _________.
Reduced Ratio
Fraction
÷
Words
Colon
÷
3. 12:32
Factors of 12.
____ x ____ = 12
____ x ____ = 12
____ x ____ = 12
Reduced Ratio
Fraction
Words
Colon
Factors of 32.
____ x ____ = 32
____ x ____ = 32