Final answer:
The easiest way to extinguish a fire caused by a leak is to use a fluorinated solution such as foam that can spread across the burning surface and smother the fire.
Step-by-step explanation:
The easiest way to extinguish a fire caused by a leak is to use a fluorinated solution such as foam. This foam is able to spread across the burning surface and effectively extinguish the fire by smothering it. Fluorinated foams are commonly used to fight large-scale fires of organic liquids.