Add & subtract rational expressions: like denominators

Daniel and Dingane were each asked to perform the following operation: >$\dfrac{18y^2+22}{16y-39}+\dfrac{y-14}{16y-39}$ Their answers are shown below: **Daniel** ||| **Dingane** :-:|:-:|:-:|:-: $\dfrac{18y^2+y+8}{32y-78}$ ||| $\dfrac{18y^2+y+8}{16y-39}$ **Which student is correct?** [[☃ radio 1]]