We have all seen some pretty interesting things happen when using floats. You might even know how to get around most of these problems. But why do these problems occur? Why do floats become so inaccurate when working with really small, or really large numbers? In this talk, we will take a look at fractions through the eyes of a computer to get a better understanding of what's going on behind the scenes. We will also take a look at some best practices that will help in your career forward.