Examples of this are:
2 and [tex] \frac{6}{3} [/tex]
2 and [tex] \frac{12}{6} [/tex]
4 and [tex] \frac{8}{2} [/tex]
I'm guessing you have a work sheet going along with this which has actual images of containers. I've attached an example - if you can post the actual work sheet you're referring to I can edit this answer to correctly reflect your specific question.
