Question

Write the second common multiple of $3$ and $6$.

Answer 1

Write the multiples of $3$ and $6$ and circle the common multiples.

Multiples of $3$ are: $3,\overline{)6},9,\overline{)12},15,\overline{)18},21,\overline{)24},27,\overline{)30}$.

Multiples of $6$ are: $\overline{)6},\overline{)12},\overline{)18},\overline{)24},\overline{)30},36,42,48,54,60$.

Hence,$\overline{)12}$ is the second common multiple of $3$ and $6$.