Etsy has become an extremely popular site where locals can sell homemade items. Sam creates custom dice trays in about 4 hours that includes custom leather colors, boarders and logos. Sams wife Xenia can also create these custom trays but she takes 6 hours to complete one. If both Sam and Xenia decide to work on a custom dice tray together how long would it take them to complete it working as a team? Create a rational equation and solve it making sure to show ALL of your work.