Complex sentence: At the University of Colima's ratings are based on a scale from 0.0 to 10.0, in which the maximum score is 10.0 and 6.0 is the minimum passing grade.
Split into simpler sentences: At the University of Colima's ratings are based on a scale from 0.0 to 10.0. The maximum score is 10.0, and 6.0 is the minimum passing grade.