

1. 
Find the least common multiple of 6 and 15. 


A. 
3 
B. 
15 


C. 
60 
D. 
30 


Hint 


2. 
Find the least common multiple of 3, 4, and 5. 


A. 
60 
B. 
120 


C. 
30 
D. 
12 


Hint 


3. 
Find the least common multiple of 3 and 6. 


A. 
12 
B. 
18 


C. 
6 
D. 
3 


Hint 


4. 
Albania has volleyball practice every 3 days and piano lessons every 4 days. If she had both a volleyball practice and a piano lesson on Monday, in how many days will she have both on the same day again? 


A. 
8 
B. 
4 


C. 
3 
D. 
12 


Hint 


5. 
Find the least common multiple of 18 and 24. 


A. 
432 
B. 
72 


C. 
36 
D. 
216 


Hint 


