Liam and Kaiden are brothers who go to different schools. The school day is just as long at Liam's school as at Kaiden's school. At Liam's school, there are 6 class periods of the same length each day. Kaiden's day is broken into 3 class periods of equal length. One day, it snowed a lot so both of their schools started late. Liam only had four classes and Kaiden only had two. Kaiden claims his school day was shorter than Liam’s was because he had only two classes on that day. Is he right? PLEASE HELP!!