Coming up with a common multiple can be difficult. Thinking of it quickly can be difficult as well. That is a skill. If you have trouble with common multiples practice the basic facts of multiplication.
The activity here will help you develop the skill for finding the common multiples.
Exercise: Find the LCM for the following pairs of numbers.
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Question 1 of 8
1. Question
What is the least common multiple of:
4 and 3

Multiples of 4 = 4,8, 12, 16, 20
Multiples of 3 = 3, 6, 9, 12, 15, 18
Answer=
CorrectIncorrect 

Question 2 of 8
2. Question
What is the least common multiple of:
6 and 9

Multiples of = , , , , , ,
Multiples of = , , , , , ,
Answer=
CorrectIncorrect 

Question 3 of 8
3. Question
What is the least common multiple of:
2 and 5

Multiples of = , , , , , ,
Multiples of = , , , , , ,
Answer=
CorrectIncorrect 

Question 4 of 8
4. Question
What is the least common multiple of:
6 and 2

Multiples of = , , , , , ,
Multiples of = , , , , , ,
Answer =
CorrectIncorrect 

Question 5 of 8
5. Question
What is the least common multiple of:
3 and 2

Multiples of = , , , , , ,
Multiples of = , , , , , ,
Answer =
CorrectIncorrect 

Question 6 of 8
6. Question
What is the least common multiple of:
16 and 4

Answer =
CorrectIncorrect 

Question 7 of 8
7. Question
What is the least common multiple of:
5 and 3

Multiples of = , , , , , ,
Multiples of = , , , , , ,
Answer =
CorrectIncorrect 

Question 8 of 8
8. Question
What is the least common multiple of:
4 and 8

Multiples of = , , , , , ,
Multiples of = , , , , , ,
Answer =
CorrectIncorrect 