Pre-Algebra Lowest Common Multiple Worksheet

1. Find the LCM of 5,4.
4
5
20
9

2. Find the LCM of 10, 20.
5
10
20
15

3. Find the LCM of 12, 30.
6
12
30
60

4. Find the LCM of 12, 36.
36
6
12
48

5. Find the LCM of 30, 40.
10
30
120
70

6. Find the LCM of 24, 36.
6
2
36
72

7. Find the LCM of 15, 25.
5
25
75
125

8. Find the LCM of 27, 9.
9
27
3
243

9. Find the LCM of 6, 9.
3
6
18
36

10. Find the LCM of 6, 10.
2
6
30
60





Answer Key