9) 4 $$ \frac{2}{5} $$ + 0,5 = $$ \frac{22}{5} $$ + $$ \frac{1}{2} $$ = $$ \frac{44 + 5}{10} $$ = $$ \frac{49}{10} $$ = 4 $$ \frac{9}{10} $$
Ответ: 4 $$ \frac{9}{10} $$