A.
[tex]\begin{gathered} \frac{1}{3}=\frac{1}{6} \\ False \end{gathered}[/tex]B.
[tex]\begin{gathered} \frac{1}{3}=\frac{2}{6} \\ \frac{2}{6}=\frac{1}{3} \\ so\colon \\ \frac{1}{3}=\frac{1}{3} \\ True \end{gathered}[/tex]C.
[tex]\begin{gathered} \frac{2}{3}=\frac{3}{6} \\ \frac{3}{6}=\frac{1}{2} \\ so\colon \\ \frac{2}{3}=\frac{1}{2} \\ False \end{gathered}[/tex]D.
[tex]\begin{gathered} \frac{2}{3}=\frac{4}{6} \\ \frac{4}{6}=\frac{2}{3} \\ so\colon \\ \frac{2}{3}=\frac{2}{3} \\ True \end{gathered}[/tex]E.
[tex]\begin{gathered} \frac{3}{3}=\frac{6}{6} \\ \frac{3}{3}=1 \\ \frac{6}{6}=1 \\ so\colon \\ 1=1 \\ True \end{gathered}[/tex]