Question

Find the LCM of:21,18,27 and 42​

Answer 1

Step-by-step explanation:

$\begin {array}{c | c c c c} 2 & 21 & 18 & 27 & 42 \\ \cline {2-5} 3 & 21 & 9 & 27 & 21 \\ \cline {2-5} 3 & 7 & 3 & 9 & 3 \\ \cline {2-5} 3 & 7 & 1 & 3 & 1 \\ \cline {2-5} 3 & 7 &1 & 1 & 1 \\ \cline {2-5} 7 & 1 & 1 & 1 & 1\end {array}$

LCM=2×3×3×3×3×7=1134

Answer 2

Answer:

this answer may help u ok na