What is the first thing you do in any conversion question?

You confirm the units involved, which would make you to understand the factors required.

Explanation:

Conversion of units is a process in which a given unit of a physical quantity is accurately transformed into another. Example, when the mass of a substance in grams is converted to kilograms. Or conversion of a given quantity of substance from liters to gallons.

When conversion is required, the first thing to do is to determine the units involved. That is, which unit do you want to convert to the required unit. This would give the understanding of the factors that are needed.