WorksheetsLowest Common Multiple (LCM)
Total questions: 27
Worksheet time: 26mins
Name
Class
Date
1.
What is the least common multiple (LCM) of 5 and 20?
a)
4
b)
5
c)
20
d)
100
2.
What is the least common multiple (LCM) of 2 and 3?
a)
6
b)
8
c)
20
d)
10
3.
What is the least common multiple (LCM) of 4 and 10?
a)
4
b)
40
c)
15
d)
20
4.
What is the least common multiple (LCM) of 2 and 24?
a)
24
b)
2
c)
12
d)
48
5.
What is the least common multiple (LCM) of 6 and 8?
a)
6
b)
8
c)
48
d)
24
6.
What is the least common multiple (LCM) of 15 and 2?
a)
30
b)
2
c)
45
d)
152
7.
What is the least common multiple (LCM) of 12 and 2?
a)
24
b)
2
c)
12
d)
36
8.
What is the least common multiple (LCM) of 8 and 5?
a)
50
b)
40
c)
5
d)
8
9.
What is the least common multiple (LCM) of 3 and 20?
a)
60
b)
40
c)
20
d)
3
10.
What is the least common multiple (LCM) of 2 and 5?
a)
2
b)
10
c)
20
d)
7
11.
Which choice is a multiple of 11?
a)
1
b)
22
c)
23
d)
24
12.
Find the Least Common Multiple of 9 and 6
a)
18
b)
36
c)
38
d)
72
13.
Find the Least Common Multiple (LCM) of 4 & 14.
a)
14
b)
20
c)
28
d)
42
14.
Find the LCM of 6 and 24.
a)
6
b)
12
c)
24
d)
8
15.
Find the Least Common Multiple (LCM) of 12 & 30
a)
30
b)
36
c)
60
d)
90
16.
Find the Least Common Multiple (LCM) of 2, 3 & 6.
a)
2
b)
6
c)
12
d)
24
17.
What is the least common multiple of 15, 21 and 35?
a)
3
b)
5
c)
105
d)
315
18.
What is the least common multiple of 14 and 49?
a)
7
b)
14
c)
49
d)
98
19.
What is the least common multiple of 36 and 72?
a)
3
b)
12
c)
36
d)
72
20.
What is the least common multiple for 10 and 25?
a)
10
b)
25
c)
50
d)
100
21.
Two neon signs are turned on at the same time. Both signs blink as they are turned on. One sign blinks every 9 seconds. The other sign blinks every 15 seconds. In how many seconds will they blink together again?
a)
48 seconds
b)
45 seconds
c)
16 seconds
d)
8 seconds
22.
The school cafeteria serves tacos every sixth day and cheeseburgers every eight day. If tacos and cheeseburgers are both on today’s menu, how many days will it be before they are both on the menu again?
a)
14 days
b)
24 days
c)
34 days
d)
44 days
23.
Two clocks are turned on at the same time. One clock chimes every 15 minutes. The other clock chimes every 25 minutes. In how many minutes will they chime together?
a)
55 minutes
b)
25 minutes
c)
60 minutes
d)
75 minutes
24.
Henry and Margo both began traveling around a circular track. Henry is riding his bike, and Margo is walking. It takes Henry 7 minutes to make it all the way around, and Margo takes 12 minutes. How much time will pass until they meet at the starting line?
a)
84 minutes
b)
48 minutes
c)
854 minutes
d)
78 minutes
25.
Jenny goes to dance class every 6 days, karate class every 12 days, and to the library every 18 days. On December 1st she went to both classes and the library. On what date will she do both classes and go to the library?
a)
24 days
b)
36 days
c)
42 days
d)
52 days
26.
At the movie theater, they give out a free drink to every 75th customer and a free bag of popcorn to every 30th customer. Who is the first customer that is going to win both free items?
a)
16th customer
b)
150th customer
c)
300th customer
d)
180th customer
27.
Melanie has pieces of train track that are 8 inches long that she is connecting together to form a track that her train can travel on. Martin is also trying to construct a track for his train but is using track pieces that are 20 inches long. How long will the shortest track be if the track that Melanie builds ends up being the same length as Martin’s track?
a)
10 inches
b)
20 inches
c)
30 inches
d)
40 inches
100 %
