Respuesta :

51/3 ÷8/9
(51/3×3)÷ 8/9
153/9÷8/9
=153/8 @ 19/1/8
5 1/3 = 16/3 & 8/9

16x9
-------
 3x8 

Multiply across
16 x 9 = 144
3 x 8 = 24

reduce 144/24 to get 6