Question

Class Work
Find the LCM of the following.
1. 9 and 12 (By listing multiples)
3. 18, 42 and 48 (By division method)​

Answer 1

Step-by-step explanation:

9 and 12

multiple of 9 multiple of 12

9 12

18 24

27 36

36 so 36 is common multiple hence lcm is 36

18 42 and 48

2 18 42 48

3 9 21 24

2 9 21 12

2 9 21 6

2 9 21 3

3 3 7 1

3 1 7 1

7 1 1 1

lcm = 2*2*2*2* 3 *3*3*7 =1008