WorksheetsGCF, LCM & Ratios!
Total questions: 25
Worksheet time: 32mins
Name
Class
Date
1.
GCF of 10 and 12
a)
5
b)
2
c)
3
d)
6
2.
GCF of 12 and 18
a)
3
b)
4
c)
6
d)
2
3.
GCF 24 and 36
a)
8
b)
6
c)
12
d)
4
4.
GCF of 32 and 40
a)
2
b)
4
c)
6
d)
8
5.
What is the least common multiple (LCM) of 5 and 20?
a)
4
b)
5
c)
20
d)
100
6.
What is the least common multiple (LCM) of 8 and 5?
a)
50
b)
40
c)
5
d)
8
7.
What is the least common multiple (LCM) of 15 and 2?
a)
30
b)
2
c)
45
d)
152
8.
51 is a _____________ of 3
a)
Factor
b)
Multiple
9.
What are the factors of 25?
a)
1, 2, 3, 5, 10, 15, 25
b)
1, 5, 25
c)
1, 25
d)
1, 5
10.
Which is a NOT a factor of 9?
a)
0
b)
1
c)
3
d)
9
11.
Find the LCM of each set of numbers.
5, 10, 15
5, 10, 15
a)
50
b)
30
c)
90
d)
150
12.
What is the ratio of red apples to green apples
a)
7 apples to 3 green
b)
4 red apples to 7 apples
c)
4 red apples to 3 green apples
d)
3 green apples to 4 red apples
13.
What word can be used when writing a ratio?
a)
a
b)
be
c)
to
d)
and
14.
If the rangers won 100 games and lost 60, what is the simplified ratio of wins to losses?
a)
10 to 6
b)
5 to 3
c)
6 to 10
d)
3 to 5
15.
Write the ratio as a fraction in simplest form.
24 players : 3 teams
24 players : 3 teams
a)
8:3
b)
8 to 1
c)
8/1
d)
8/3
16.
What are the three ways to write a ratio
a)
2;3 , 2 to 3 , 2\3
b)
2:3 , 2 to 3 , 2/3
c)
2:3 , 2 too 3 , 2/3
17.
Patrick has 2 black, 3 red, and 5 white toy cars. What is the ratio of red toy cars to all the toy cars?
a)
3:5
b)
1:3
c)
3:11
d)
3:10
18.
In the fruit bowl there are 4 apples, 2 bananas, and 5 pears. What is the ratio of pears to ALL fruit?
a)
5:4
b)
5:11
c)
2:5
d)
6:5
19.
Is the following ratio part to part or part to whole?
5 out of 23 kids in a class play trumpet
5 out of 23 kids in a class play trumpet
a)
Part to part
b)
Part to whole
20.
The cookie jar has six chocolate chip cookies and five oatmeal cookies. What is the ratio of oatmeal to chocolate chip cookies?
a)
6:5
b)
5:6
c)
6:11
d)
6:11
21.
There are 4 birds and 6 snakes. What is the ratio of birds to total animals?
a)
4/10
b)
4/6
c)
6/4
d)
10/4
22.
What represents the relationship of oranges to total fruit?
a)
2:5
b)
3:5
c)
2:4
d)
4:2
23.
There are 5 teachers and 27 students on a field trip. What is the ratio of students to teachers?
a)
27:5
b)
5:27
c)
1:5
d)
5:2
24.
Which ratio is NOT written correctly?
a)
X : Y
b)
X and Y
c)
X/Y
d)
X to Y
25.
There are three different ways to write ratios.
a)
True
b)
False
100 %
