| $$ \begin{aligned}\frac{5+i}{1+3i}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{4-7i}{5}\end{aligned} $$ | |
| ① | Divide $ \, 5+i \, $ by $ \, 1+3i \, $ to get $\,\, \dfrac{4-7i}{5} $. ( view steps ) |