Complex sentence: Ypsilanti High School (or'Ypsi High,' as many people refered to it), was a comprehensive high school serving 9--12th grades, located on the western edge of the Ypsilanti Public School District at the corner of Packard and Hewitt Roads.
Split into simpler sentences: Ypsilanti High School (or'Ypsi High,' as many people refer to it), is a comprehensive high school serving 9--12th grades. It is located on the western edge of the Ypsilanti School District at the corner of Packard and Hewitt Roads.