Đáp án: 

$\approx 763,804$

Giải thích:

`9 \times 5 + \frac{5}{2} + \frac{6}{7} + \frac{3}{7} \times 3 - 5 + \frac{2}{5} + 6 \times 56 + \frac{46}{4} + \frac{59}{46} + \frac{69}{42} + \frac{4}{2} + 5 \times 5 + \frac{45 \times 385 \times (3+6+7+4)}{45^5} + \frac{4^5}{3}`

`= (45 - 5 + 336 + 25) +( \frac{5}{2} + \frac{46}{4} + \frac{4}{2}) +( \frac{6}{7} + \frac{9}{7} ) + \frac{2}{5} + \frac{59}{46} + \frac{69}{42} + \frac{45 \times 385 \times 20}{45^5} + \frac{1024}{3}`

`= 401 +( \frac{5}{2} + \frac{23}{2} + \frac{4}{2}) + \frac{15}{7} + \frac{2}{5} + \frac{59}{46} + \frac{23}{14} + \frac{385 \times 20}{45^4} + \frac{1024}{3}`

`= 401 + 16 +( \frac{30}{14} + \frac{23}{14}) + \frac{2}{5} + \frac{59}{46} + \frac{7700}{4100625} + \frac{1024}{3}`

`= 417 + \frac{53}{14} + \frac{2}{5} + \frac{59}{46} + \frac{7700}{4100625} + \frac{1024}{3}`

`\approx 417 + 3,7857 + 0,4 + 1,2826 + 0,0019 + 341,3333`

`\approx 763,8035`

$\longrightarrow$ $\approx 763,804$