Question

Find lcm and hcf of 12,16 and 21

Answer 1

hey...here's ur solution ,

12 = 2× 2 × 3

15 =3×5

21 = 3× 7

hence =

HCF = 3

LCM = 2×2×3×5×7

= 420.

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Answer 2

Answer:

HEY MATE HERE IS YOUR ANSWER ☺️✌.

Step-by-step explanation:

◤⚠

4 is the highest common factor of 12,16 and 21.

3×4=12

4×4=16. ♨⏫

7×4=21

So hcf of 12,16,21 is 4 .⚠◢

HOPE IT HELPS YOU❤️❤️

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