1) Let's do it this way in parts. The first one is to add the whole numbers separately:
[tex]\begin{gathered} 3\frac{1}{2}+4\frac{1}{3}\Rightarrow3+4=7 \\ \end{gathered}[/tex]2) Note that the fractions do not have the same bottom number, so let's take the LCM(3,2) = 6 and then multiply each fraction by the LCM:
[tex]3\frac{1}{2}+4\frac{1}{3}=(3+4)+(\frac{1}{2}+\frac{1}{3})=7+\frac{5}{6}=7\frac{5}{6}[/tex]So, Ali takes 7 5/6 hours
