Question

lcm and HCF of 12,18,20​

Answer 1

Answer:

LCM :540

HCF: 4

Hope it helps.....

Answer 2

$\mathfrak{\huge{\fbox{\fbox{\red{Be\:Brainly}}}}}$

To Find :- LCM and HCF of 12,18,20

Answer :-

⏩ H.C.F is 2 & L.C.M. is 180 .

✒ Solution :-

$\begin{array}{r | l}</p><p></p><p>2 & 12 \\</p><p></p><p>\cline{2-2} 2 & 6 \\</p><p></p><p>\cline{2-2} 3 & 3 \\</p><p></p><p>\cline{2-2} & 1</p><p></p><p>\end{array}$

$\begin{array}{r | l}</p><p></p><p>2 & 18 \\</p><p></p><p>\cline{2-2} 3 & 9 \\</p><p></p><p>\cline{2-2} 3 & 3 \\</p><p></p><p>\cline{2-2} & 1</p><p></p><p>\end{array}$

$\begin{array}{r | l}</p><p></p><p>2 & 20 \\</p><p></p><p>\cline{2-2} 2 & 10 \\</p><p></p><p>\cline{2-2} 5 & 5 \\</p><p></p><p>\cline{2-2} & 1</p><p></p><p>\end{array}$

12 = 2×2×3

18 = 2×3×3

20 = 2×2×5

So, HCF is 2 .

12 = 2×2×3

18 = 2×3×3

20 = 2×2×5

So, LCM is 2×2×3×3×5 = 4× 9 ×5 = 180

___________________________________