you mean you want to divide[tex]3\frac{2}{3} [/tex] into three equal parts?
we do it like this: first, i would change the mixed number into improper fraction just so that there is no confusion
[tex]3\frac{2}{3} [/tex]=[tex]\frac{2+3*3}{3} [/tex]=[tex]\frac{11}{3} [/tex]
now we divide it into three:
[tex]\frac{11}{3*3} [/tex]=[tex]\frac{11}{9} [/tex]=[tex]1\frac{2}{3} [/tex]
and that's the solution