Question

प्रश्न
8.
12, 15 और 21 का ल0स0 (LCM) क्या होगा?
(A)520
B) 420
(C)220
(D)320​

Answer 1

Answer:

420 (b)

Explanation:

12=2×2×3

15=3×5

21=7×3

LCM =HCF × REMAINING NUMBERS

LCM =3×2×2×5×7

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Answer 2

Answer:

420

Explanation:

2|12,15,21

3 | 6,15,21

2|2,5,7

5|1, 5,7

7 |1, 1, ,7

| 1,1,1

2*3*2*5*7=420