Chọn đáp án đúng

A. $\frac{3}{8}+\frac{1}{6}=\frac{3+1}{8+6}=\frac{4}{14}=\frac{2}{7}$

B. $\frac{3}{8}-\frac{1}{6}=\frac{3-1}{8-6}=\frac{2}{2}=1$

C. $\frac{3}{8}x\frac{1}{6}=\frac{3x1}{8x6}=\frac{3}{48}=\frac{1}{16}$

D. $\frac{3}{8}:\frac{1}{6}=\frac{3}{8}x\frac{6}{1}=\frac{18}{8}=\frac{9}{4}$