Name
LESSON
Date
Class
Practice C
5-1 Ratios
A traveling theater company has 51 actors, 63 stagehands, and
27 set designers. Write each ratio in all three forms.
1. stagehands to set designers
2. actors to stagehands
3. set designers to actors
4. set designers to stagehands and
actors
There are 18 monkeys, 6 gorillas, and 15 other apes in the
Primate House at the zoo. Write different combinations of
animals that have the following ratios.
5. 2:5
6. 6:5
7. 1:3
8. 6:7
9. 5:13
10. 8:5
11. The class library has 7 French books, 11 Spanish books, 19 art
books, 3 Italian books, and 14 science books. What is the ratio
of foreign language books to all books in simplest form?
12. A market research company tests new commercials. Out of 96 people, 80 people
prefer Commercial A and the rest prefer Commercial B. Write the ratio in simplest
form of people who prefer Commercial A to Commercial B.
13. Which grade has the greatest
ratio of the number of students
against wearing a uniform
to the total number of students
in that grade?
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
School Uniform Survey
6th
Grade
7
7th
8th
Grade Grade
For
16
9
5
Against
20
24
21
No Opinion
4
3
1
Holt Mathematics
Practice A
5-1 Ratios
Practice B
5-1 Ratios
LESSON
LESSON
Match the ratios.
A farmer has 5 pigs, 13 chickens, and
8 cows.
The annual dog show has 22 collies, 28 boxers, and 18 poodles.
Write each ratio in all three forms.
The school orchestra has 9 cellos,
14 flutes, and 17 violins.
1. cows to pigs
13:5
5. cellos to violins
9 to 14
2. chickens to pigs
5:8
6. flutes to cellos
9 to 17
3. cows to chickens
8:5
7. violins to flutes
17 to 14
4. pigs to cows
8:13
8. cellos to flutes
Miguel has 8 pennies, 5 nickels,
and 3 quarters.
9. nickels to pennies
10. pennies to quarters
11. nickels to quarters
12. quarters to pennies
14 to 9
13. grapes to strawberries
7:16
14. cherries to grapes
7:9
15. strawberries to cherries
16:9
16. cherries to strawberries
9:7
6. math teachers to Spanish teachers
27
3
, 27 to 18, 27:18; or ; 3 to 2, 3:2
18
2
8. art and math teachers to Spanish
teachers
7. Spanish teachers to all teachers
42
7
, 42 to 18, 42:18; or , 7 to 3, 7:3
18
3
18
3
, 18 to 60, 18:60; or , 3 to 10, 3:10
10
60
9. Thirty-two students are asked
whether the school day should be
longer. Twenty-four vote “no” and 8
vote “yes.” Write the ratio of “no”
votes to “yes” votes in simplest form.
20. outfielders to entire team
4
2
, 4 to 10, 4:10; or ; 2 to 5; 2:5
10
5
9
18
, 18 to 22, 18:22; or , 9 to 11, 9:11
11
22
15
5
, 15 to 27, 15:27, or , 5 to 9, 5:9
27
9
12
6
, 12 to 10, 12:10; or , 6 to 5, 6:5
10
5
19. pitchers to outfielders
4. poodles to collies
5. art teachers to math teachers
18. infielders to outfielders
4
1
, 4 to 12, 4:12; or , 1 to 3, 1:3
12
3
3. poodles to boxers
28
14
, 28 to 22, 28:22; or , 14 to 11, 14:11
22
11
The Franklin School District has 15 art teachers, 27 math
teachers, and 18 Spanish teachers. Write the given ratio in
all three forms.
A baseball team has 4 pitchers, 10 outfielders, and 12 infielders.
Write each ratio in all three forms.
17. pitchers to infielders
2. boxers to collies
18
9
, 18 to 28, 18:28; or , 9 to 14, 9:14
28
14
A bowl has 16 grapes, 7 cherries,
and 9 strawberries.
3
8
5
3
5
8
8
3
1. collies to poodles
11
22
, 22 to 18, 22:18: or , 11 to 9, 11:9
18
9
10
5
, 10 to 26, 10:26 or ; 5 to 13; 5:13
13
26
10. A train car has 64 seats. There are
48 passengers on the train. Write the
ratio of seats to passengers in simplest form.
4 to 3
3 to 1
Glen
11. Tell whose CD collection has the
greater ratio of rock CDs to total CDs.
21. Meg used 24 red tiles and 12 yellow tiles to
make a design. Write the ratio of red tiles
to yellow tiles in simplest form.
Glen
Nina
Classical CDs
4
8
Rock CDs
9
12
Other CDs
5
7
2 to 1
22. Tell which club has the greater ratio of girls
to boys.
Art Club
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
Movie Club
Art Club
Girls
16
8
Boys
14
4
5
Holt Mathematics
LESSON
A ratio is a comparison of two numbers.
A traveling theater company has 51 actors, 63 stagehands, and
27 set designers. Write each ratio in all three forms.
1. stagehands to set designers
7
65
, 63 to 27, 63:27; or , 7 to 3, 7:3
27
3
Tamara has 2 dogs and 8 fish. The ratio of dogs to fish can be
written in three different ways.
2. actors to stagehands
17
51
, 51 to 63, 51:63; or ; 17 to 21, 17:21
21
63
3. set designers to actors
4. set designers to stagehands and
actors
9
27
, 27 to 51, 27:51; or , 9 to 17, 9:17
17
51
9
27
, 27 to 114, 27:114; or , 9 to 38, 9:38
38
114
There are 18 monkeys, 6 gorillas, and 15 other apes in the
Primate House at the zoo. Write different combinations of
animals that have the following ratios.
gorillas to other apes
7. 1:3
gorillas to monkeys
9. 5:13
1
4
apples and
You can read
the ratios as 2 to 8
or 1 to 4.
8
to
3
There are
5
3
8
, or
or
:
to
8
, or
4. apples to all pieces of fruit
3
to
8
There are
16
5
,
apples and
pieces of fruit in all. So, the
ratio of apples to all pieces of fruit is
3
5
, or .
5
5
5 : 8 , or 5 .
8
oranges. So, the ratio of
3
oranges and
apples. So, the ratio of oranges
to apples is
bananas and
bananas to oranges is
5
There are
3. bananas to oranges
5 to 1
1
to
2
, or
1
:
2
1
2
, or .
A large bouquet of flowers is made up of 18 roses, 16 daisies,
and 24 irises. Write each ratio in all three forms.
School Uniform Survey
6th
Grade
8
bananas. So, the ratio of apples
8 : 3 , or 8 .
3
12. A market research company tests new commercials. Out of 96 people, 80 people
prefer Commercial A and the rest prefer Commercial B. Write the ratio in simplest
form of people who prefer Commercial A to Commercial B.
Copyright © by Holt, Rinehart and Winston.
• writing a fraction
2
8
to bananas is
11. The class library has 7 French books, 11 Spanish books, 19 art
books, 3 Italian books, and 14 science books. What is the ratio
of foreign language books to all books in simplest form?
7:18
7
1 to 4
1:4
3
10. 8:5 monkeys and gorillas to other apes
8th grade
Ratio in simplest form
2 to 8
2:8
There are
8. 6:7 monkeys to gorillas and other apes
13. Which grade has the greatest
ratio of the number of students
against wearing a uniform
to the total number of students
in that grade?
Ratio
• using the word to
• using a colon (:)
In a basket of fruit, there are 8 apples, 3 bananas, and
5 oranges. Write each ratio in all three forms.
1. apples to bananas
2. oranges to apples
monkeys to other apes
6. 6:5
other apes to all primates
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
Holt Mathematics
Review for Mastery
5-1 Ratios
Practice C
5-1 Ratios
LESSON
5. 2:5
6
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
5. roses to irises
7th
8th
Grade Grade
For
16
9
5
Against
20
24
21
No Opinion
4
3
1
6. daisies to roses
3
8
3 to 4; 3:4; 4
8 to 9; 8:9; 9
7. irises to daisies
8. roses to all flowers
9
29
3
3 to 2; 3:2; 2
Holt Mathematics
Copyright © by Holt, Rinehart and Winston.
All rights reserved.
87
9 to 29; 9:29; 8
Holt Mathematics
Holt Mathematics