Question

what is the LCM of 12 15 40​

Answer 1

2 [12,15,40

3 [6, 15, 20

2 [2, 5, 20

5 [ 1, 5, 10

2 [ 1, 2

[ 1

LCM = 2x3x2x5x2 = 120

$\huge\color{purple}{ \colorbox{amber}{\colorbox{aqua} {120}}}$

Answer 2

$2|12,15,40$

$2|6,15,20$

$2|3,15,10$

$3|3,15,5$

$5|1,5,5$

$\: \: |1,1,1$

So, the L.C.M of 12, 15 and 40 is 2×2×2×3×5=120

HOPE IT HELPS ✌