7/5 + 5/2 - 4/5 = ...... tolong ya kakak

[tex] \frac{7}{5} + \frac{5}{2} - \frac{4}{5} = \\ \\ \frac{14}{10} + \frac{25}{10} - \frac{8}{10} = \\ \\ \frac{31}{10} [/tex]
kalau bisa disederhanakan, sederhanakan aja ya..
kalau bisa dikoreksi dulu