5 1/3 - [1/10 + 2/15] ÷ 1/25 =

5 1/3 - ( 1/10 + 2/15 ) ÷ 1/25 =
= 16/3 - ( 1/10 + 2/15 ) ÷ 1/25
= 16/3 - ( 15/150 + 20/150 ) ÷ 1/25
= 16/3 - 35/150 ÷ 1/25
= 16/3 - 35/150 × 25/1
= 16/3 - 875/150
= 16/3 - 35/6
= 560/18 = 280/9

*maaf jika salah, semoga membantu ^_^