Max and Sam are in the same third grade class. Their teacher asked everyone in the class to try to read as much as they could over the weekend and keep track of what they read. On Saturday, Max read 28 pages and Sam read 19 pages. On Sunday, Max read 15 pages and Sam read 26 pages. On Monday, Max and Sam compared the number of pages they read over the weekend. Who read more pages? How many more pages did he read? Show your work.