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Problem:
Antonio spent 2 2/4 hour changing the tires of his bicycle. Then, he spent 1 1/8 hour pumping air into the tires. How many hours did he spend changing the tires than pumping air into the tires?

Step in solving the problems
UNDERSTAND
What is asked?
What is the given facts?
PLAN
Write the number sentence
What Operation will be use?
SOLVE
Solutions
CHECK
Looked back and checked