Question

Find out LCM by division method

1. 120, 144, 160, 180
2. 35, 45, 55​

Answer 1

Answer:

2/120,144,160,180

2 /60,72,80,90

2 /30,36,40,45

2 /15,18,20,45

3/15,9,10,45

3/5,3,10,15

5/5,1,10,5

1,1,2,1

so,the lcm-2*2*2*2*3*3*5=420ans

5/35,45,55

1/7,9,11

lcm=5*1*7*9*11=3465 ans

hope it help u .

Answer 2

Step-by-step explanation:

120,144,160,180/2

60,72,80,90/2

30,36,40,45/2

15,6,10,15/3

5,3,10,5/5

1,1,2,1/2/2

1,1,1,1

LCM of 120,144,160and180 is

=2×2×2×3×3×5×2=1440