Answer:
8
Step-by-step explanation:
First, convert the mixed fraction to an improper one:
[tex]\displaystyle{6\frac{8}{9}=\frac{62}{9}}[/tex]
Then, multiply:
[tex]\displaystyle{\frac{62}{9}\times\frac{36}{31}}[/tex]
Cross-reduce:
[tex]\displaystyle{\frac{2}{1}\times\frac{4}{1}}[/tex]
And simplify:
[tex]\displaystyle{\frac{8}{1}=8}[/tex]
