I'll add those up, and to that I will add the fractional parts so to that, I will add the five thirteenths to the six thirteenths so if we add the whole number parts two plus seven is nine and the fractional parts, already having the same denominator five thirteenths plus six thirteenths your going to get eleven thirteenths, five plus six is eleven so you get nine plus eleven thirteenths well that's just the same thing as nine and eleven thirteenths and we are done!