M) $\left(\frac{2}{3}\right) \times\left(\frac{1}{4}\right)=$

Step 1 ：\(\frac{2}{3} \times \frac{1}{4} = \frac{2 \times 1}{3 \times 4}\)

Step 2 ：\(\frac{2}{12} = \frac{1}{6}\)

Step 3 ：\(\boxed{\frac{1}{6}}\)