On this site it talks about the relationship between math and ballet, like ballet and fractions. This post is by Ashley Chin-Mark. It shows the origins of ballet and the different types of math behind ballet.There needs to be exact measurements to create the perfect pointe shoe. And the different angles and how they need to be perfect to do the perfect lift. This site also explains that Aurora (from the Sleeping Beauty ballet) needs to have the perfect pirouettes and ponches. 

This is helpful to me because it shows me there is much more to each move and step.  Each arm line has to be straight and if it isn’t then the symmetry is off. It shows that there IS math in ballet and that ballet is much more complicated than it seems.