Question

3. Find the LCM of the following by division
method:
(i). 18, 36, 60, 72
ka
(ii) 20, 25, 30, 50
(iii) 48, 56, 105, 225 (iv) 8, 12, 20, 30, 80
(v) 9, 12, 18, 24, 27 (vi) 22,54, 108, 135, 198​

Answer 1

Answer:

360

Step-by-step explanation:

Steps of finding by division method:

2 | 18, 36, 60, 72

3 | 9, 18, 30, 36

3 | 3, 6, 10, 12

2 | 1, 2, 10, 4

2 | 1, 1, 5, 2

5| 1, 1, 5, 1

  1, 1, ,1, 1

Hence, LCM = 2 * 3 * 2 * 2 * 3 * 5

                     = 2^3 * 3^2 * 5

         

                     = 360.