| $$ \begin{aligned}\frac{115.911+31.06i}{40+20i}& \xlongequal{ }\frac{115.911+31i}{40+20i} \xlongequal{ } \\[1 em] & \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{261-53i}{100}\end{aligned} $$ | |
| ① | Divide $ \, 115+31i \, $ by $ \, 40+20i \, $ to get $\,\, \dfrac{261-53i}{100} $. ( view steps ) |