Answer:
Look at the image provided.
Explanation:
The top number, 1, is the numerator. This practically indicates how much of the denominator [the bottom number] is taken out (in this case, it's taken out because Cameron ate it).
A denominator is how many pieces there are total. In this case, there are 3.
Thinking logically, if Cameron ate 1 slice of granola before school, and another for lunch, she ate a total of 2 slices [or 2/3].
Now to the drawing. Draw a rectangle and divide it into 3 sections (as there's 3 pieces to the granola). If Cameron ate 2, you have to colour in 2. So there yellow shaded section on my diagram is the shaded bar.
Hope this helps!