Let's begin by identifying key information given to us:
pineapple = 1/6 fruit juice
orange = 1/9 fruit juice
The fraction of the fruit juice that is pineapple or orange juice is given by the sum of pineapple & orange above. We have:
![\begin{gathered} (1)/(6)+(1)/(9)=(9+6)/(54) \\ \Rightarrow(15)/(54)=(5)/(18) \\ =(5)/(18) \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/o87tfwcl0t70utmpmffz0y7kbyof0nb28q.png)
Hence, B (1/6 + 1/9 = 5/18) is the correct answer