the best way to never forget how to doit is write the fractionlike this
[tex]\frac{a}{b}[/tex]and realize that b is a division. then
[tex]\frac{a}{b}\cdot c=\frac{ac}{b}[/tex]in this case,
[tex]\frac{2}{3}\cdot308=\frac{2\cdot308}{3}=\frac{616}{3}[/tex]