2.2+ 9 8 4 4+5=3,85

2. $$ \frac{9}{4} + \frac{8}{5} = \frac{9 \cdot 5 + 8 \cdot 4}{20} = \frac{45 + 32}{20} = \frac{77}{20} = 3.85 $$

Ответ: 3,85