Burger barn has 46 2/3 = 140/3 pounds of beef.
If you would like to know how many 1/3 pound burgers can be made using all the beef, you can calculate this using the following steps:
46 2/3 / 1/3 = 140/3 / 1/3 = 140/3 * 3 = 140 burgers
Result: 140 burgers can be made using all the beef.