8/3=3x (cross multiplied to get this)
X=8/9 (divided both sides by 3)
Hope this helps :)
[tex] \dfrac{\dfrac{1}{3}}{3}=\dfrac{x}{8}\\\\\dfrac{1}{9}=\dfrac{x}{8}\\\\9x=8\\\\x=\dfrac{8}{9} [/tex]