Question

Find the LCM by common division method.
(a) 12, 15, 45
(b) 24, 90, 48
(c) 30, 24, 36, 16
(d) 16, 48, 64
(e) 35, 49, 91
(f) 20, 25, 30
(g) 12, 16, 24, 36
(h) 40, 48, 45​

Answer 1

Answer:

A

12,15,45 |5

12,3,9. |3

4,1,3|

LCM=5*3*4*3=180

b.

24,90,48 |2

12,45,24 |3

4,15,8. |5,2

2,3,4. |2

1,3,2

LCM=2*3*5*2*2*2*3=720

c.

30,24,36,16 |2

15,12,18,8 |3

5,4,6,8 |5,2

1,2,3,4. |2

1,1,3,2

LCM=2*3*5*2*2*2*3=720

d.

16,48,64 |2

8,24,32 |2

4,12,16 |2

2,6,8 |2

1,3,4

LCM=2*2*2*2*2*2*3=192

e.

35,49,91 |13,7

5,7,7. |

LCM=13*7*7*7*5=22295

f.

20,25,30 |5

4,5,6 |3,2

2,5,2

LCM=5*3*2*5*2=300

g.

12,16,24,36|2

6,8,12,18. |3

2,8,4,6 |2

1,4,2,3. |2,3

1,2,1,1

LCM=2*3*2*2*3*2=144

h.

40,48,45 |2

20,24,45 |5

4,24,9. |3

4,8,3. |2

2,4,3 |2

1,2,3

LCM=2*3*5*2*2*2*3=720

Read more on Brainly.in - https://brainly.in/question/17147858#readmore

Step-by-step explanation:

Answer 2

Answer:

D . 16,48,64 THIS IS ANSWER