Answer:
Explanation:
robbie is carrying his history textbook and his lunch in his backpack today.
The history textbook weighs 2 5/6 pounds. Converting 2 5/6 pounds to improper fraction, it becomes
17/6 pounds.
His lunch weighs 1 2/3 pounds. Converting 1 2/3 pounds to improper fraction, it becomes
5/3 pounds.
Total weight of the back backpack today would be the sum of the weight of his history textbook and his lunch. It becomes
17/6 + 5/3 = 27/6 = 4 1/2 pounds