Dear Student, i LCM of 8,12 and 242 |8 ,12 , 242 | 4, 6 , 12 2 | 2 , 3, 6 3 | 1, 3, 3 1, 1, 1 Therefore LCM of 8,12 and 24=2×2×2×3 =24ii LCM of 10,15 and 202 |10 , 15 , 202 | 5 , 15 , 10 3 | 5 , 15, 5 5 | 5, 5 , 5 1, 1, 1 Therefore LCM of 10,15 and 20=2×2×3×5 =60 Regards

8 c qi 1

Dear Student,

(i) L C M o f 8, 12 a n d 24 2 | 8, 12, 24 2 | 4, 6, 12 2 | 2, 3, 6 3 | 1, 3, 3 1, 1, 1 T h e r e f o r e L C M o f 8, 12 a n d 24 = 2 \times 2 \times 2 \times 3 = 24 (i i) L C M o f 10, 15 a n d 20 2 | 10, 15, 20 2 | 5, 15, 10 3 | 5, 15, 5 5 | 5, 5, 5 1, 1, 1 T h e r e f o r e L C M o f 10, 15 a n d 20 = 2 \times 2 \times 3 \times 5 = 60

Regards

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