Write $\frac{1}{i}i$ in the form $xi +y$ This was a test problem that I did not understand at all. I know it is converting complex numbers, but I need help.
How do I write $\frac{1}{i}i$ in the form $xi +y$?

In general, if you have $$ \frac{a+bi}{c+di} $$ 
you can multiply by $ (c-di)/(c-di)$ and simplify things nicely... I'll leave the details to you, but can you see how to use this for your problem? But as people have pointed out, it is indeed just equal to 1.
