Question

Rob owns 5/9 of the stock in a local bread company. His sister Talia owns half as much stock as Rob. What part of the stock is owned by neither Rob nor​ Talia?

Answer 1

The part of the stock owned by others is 3/18

Explanation:

Rob owns 5/9 of the stock

And Talia half as much as Rob then Talia has:

(5/9) ÷ 2 = 5/18 of the stock

So Rob and his sister they both have

5/9 + 5/18 = ( 10 + 5 ) / 18 ⇒ 15/18

And the part of the stock owned by others is:

The total stock in term of fraction is 18/18 o 1 or 100 %

Then (18/18) - (15/18) = 3/18