| $$ \begin{aligned}\frac{4-i}{4-5i}& \xlongequal{ \color{blue}{ \text{\normalsize{ \htmlClass{explanationCircle explanationCircle1}{\textcircled {1}} } }}}\frac{21+16i}{41}\end{aligned} $$ | |
| ① | Divide $ \, 4-i \, $ by $ \, 4-5i \, $ to get $\,\, \dfrac{21+16i}{41} $. ( view steps ) |