let's firstly, convert the mixed fractions to improper, and then do the ratio.
[tex]\bf \stackrel{mixed}{6\frac{5}{9}}\implies \cfrac{6\cdot 9+5}{9}\implies \stackrel{improper}{\cfrac{59}{9}}~\hfill \stackrel{mixed}{4\frac{1}{3}}\implies \cfrac{4\cdot 3+1}{3}\implies \stackrel{improper}{\cfrac{13}{3}} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \cfrac{~~6\frac{5}{9}~~}{4\frac{1}{3}}\implies \cfrac{~~\frac{59}{9}~~}{\frac{13}{3}}\implies \cfrac{59}{9}\cdot \cfrac{3}{13}\implies \cfrac{59}{13} \cdot \cfrac{3}{9}\implies \cfrac{59}{13}\cdot \cfrac{1}{3}\implies \cfrac{59}{39}[/tex]