[tex]\begin{gathered} \text{ 6 plant pot ---- }8\text{ gallons} \\ \text{ 1 Plant pot ---- x} \\ x=\frac{1\text{ plant pot }\cdot\text{ 8 gallons}}{6\text{ plant pot}} \\ \\ x=\frac{8}{6}=\frac{4}{3}=\text{ 1 }\frac{1}{3}\text{ gallons} \\ \text{ 1 }\frac{1}{3}\text{ gallons are n}eeded\text{ to fill 1 plant pot} \end{gathered}[/tex]