Julia needs 3 [tex] \frac{1}{4} [/tex] cups of oatmeal, and she can only get it in [tex] \frac{1}{4} [/tex] cup quantities at a time. We know that [tex] \frac{4}{4} [/tex] makes 1 whole, so we need to multiply the amount of whole cups she has by 4.
3 * 4 = 12
Finally, we see that there is [tex] \frac{1}{4} [/tex] cup of extra oatmeal that Julia wants, so we add one more to our sum.
It will take 13 sets of [tex] \frac{1}{4} [/tex] cups of oatmeal to make 3 [tex] \frac{1}{4} [/tex] cups of oatmeal.
Hope that helped =)
