Perform the indicated operations and simplify. 
Definitions:
Laceration
A deep cut or tear in skin or flesh.
Comminuted Fracture
A type of bone fracture where the bone is broken into several pieces.
Closed Fracture
A type of bone fracture where the skin remains intact and there is no open wound over the fracture site.
Acute Abdominal Pain
A sudden onset of severe pain located in the abdomen which may indicate a serious condition.
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