Question

The HCF and LCM of 12,21,15 respectively are
(a)3,140 (b)12,420
(C)3,420 (D)420,3

Answer 1

Answer:

option (c) is the correct answer.

Step-by-step explanation:

I hope u understand.

Answer 2

option (c)

3,420

Step-by-step explanation:

given numbers :

12  , 21, 15

factors of

12 = 2×2×3

21 = 3×7

15=3×5

then HCF is = 3

LCM = 3×7×5×2×2

LCM = 420

hence  HCF and LCM of 12,21,15 are

option (c)

3,420

#Learn more:

Hcf of 32,36,40,42find their hcf

https://brainly.in/question/5083340