Since they have the same denominator, you can directly view the top without comparing the bottom. To compare just look at the top two numbers to decide which of the two is bigger. Looking into the problem I see that the two numerators, the top number of a fraction, are 15 and 12. Now, compare these two numbers.
15 _ 12
15 <u>></u> 12
So... this shows that the first fraction in bigger than the second.
