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:

ot is very long

Step-by-step explanation:

you find the answer by using a cal ulator

Answer 2

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