Question

Find the LCM using the common division method 12, 15, 20 ​

Answer 1

Answer:

The LCM of 12,15,20 is 2×2×3×5 =60

Answer 2

$\begin{array}{c|ccc}\sf 2 &\sf \underline{12} &\sf \underline{15} &\sf \underline{20} \\ \sf 2 &\sf\underline{6} &\sf\underline{15} &\sf \underline{10} \\ \sf 3 &\sf \underline{3} &\sf\underline{15} &\sf \underline{5} \\ \sf 5&\sf \underline{1} &\sf\underline{5}&\sf \underline{5} \\ &\sf\underline{1} &\sf\underline{1} &\sf\underline{1} \end{array}$

LCM=2×2×3×5=60