The crew of a garbage truck takes 5 hours to empty all the bins in one neighborhood on pickup day. The city assigned a second garbage truck to this neighborhood. During their training, it took the crew from the second truck 8 hours to empty all the bins. A table showing Rate in part per hour, Time in hours, and Part of Bins Emptied. The first row shows First Truck and has, 1 Over 5 ], t, and 1 Over 5 times t. The second row shows Second Truck and has, 1 Over 8 , t, and 1 Over 8 times t.

When the two crews start working together, what part of all the garbage bins will the first garbage truck empty?