Hey You!
The answer is
[tex] \\ \\ 24 \frac{9}{40} \\ \\ 3 + \frac{ 5}{8} + 20 \: + \frac{3}{5} \\ \\ 3 + \: 20 \: = 23 \\ \\ \frac{5}{8} + \frac{3}{5} = (we \: do \: not \: know \: so \: we \: use \: the \: lcd \: which \: is \: 40) \\ \\ \frac{25}{40} + \frac{24}{40} = \frac{49}{40} \\ \\ \frac{49}{40} = 1 \frac{9}{40} \\ \\ 23 \: + \: 1 \: + \frac{9}{40} = \: 24 \frac{9}{40} [/tex]
It's confusing but that's it! :)