The fraction "1/5" represents one part out of five equal parts. It is a way to express a division of a whole into five segments, where each segment is the same size. In decimal form, "1/5" is equivalent to 0.2, meaning that if you divide something into five equal pieces, one piece would be 20% of the whole. In practical terms, "1/5" can be used in various situations, such as measuring ingredients in cooking or dividing a bill among friends. For example, if a pizza is cut into five slices, taking "1/5" means you are taking one slice of the pizza, leaving four slices remaining.