Question

find the LCM of 660,420

Answer 1

660
$660 = 420 \times 1 + 240 \\ 420 = 240 \times 1 + 180 \\ 240 = 180 \times 1 + 60 \\ 180 = 60 \times 3 + 0 \\ \\ \\hene \: lcm \: is \: 6$

Answer 2

is it the right answer