Question

Find the LCM of the given numbers by listing multiples of these numbers
(a) 9. 18
(c) 11,22,44 (e) 12,14.,84
(d) 2,12
(d) 6. 7. 14
(f) 5, 8, 15
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Answer 1

Answer:

lcm are in the following

A. 18

B. 44

C. 84

D. 12

E. 14

F. 15

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Answer 2

Step-by-step explanation:

(a) 9,18

3| 9, 18

3| 3, 6

| 1, 2

LCM = 3 × 3 × 2 = 18

(c) 11, 22, 44

2| 11, 22, 44

11| 11, 11, 22

| 1, 1, 2

LCM = 2 × 2 × 11 = 44

(d) 2, 12

2| 2, 12

| 1, 6

LCM = 2 × 6 = 12

(d) 6, 7, 14

2| 6, 7, 14

7| 3, 7, 7

| 3, 1, 1

LCM = 2 × 3 × 7 = 42

(e) 12, 14, 84

2| 12, 14, 84

2| 6, 7, 42

3| 3, 7, 21

7| 1, 7, 7

| 1, 1, 1

LCM = 2 × 2 × 3 × 7 = 84

(f) 5, 8, 15

5| 5, 8, 15

| 1, 8, 3

LCM = 3 × 5 × 8 = 120