The number "0.2" is a decimal that represents two-tenths of a whole. In fraction form, it can be expressed as 2/10, which simplifies to 1/5. This means that if you divide something into five equal parts, "0.2" represents one of those parts. In practical terms, "0.2" can be used in various contexts, such as measuring quantities or percentages. For example, if you have a liter of water, "0.2" liters would be equivalent to 200 milliliters. This makes "0.2" a useful number in everyday calculations and measurements.