The fraction "3/1000" represents a part of a whole, where 3 is the numerator and 1000 is the denominator. This means that if you divide something into 1000 equal parts, 3 of those parts would be represented by this fraction. It can also be expressed as a decimal, which is 0.003, indicating a very small quantity. In practical terms, "3/1000" can be used in various contexts, such as statistics or finance. For example, if a population of 1000 people has 3 individuals with a specific trait, the proportion of that trait in the population is 3/1000. This helps in understanding ratios and comparisons in data analysis.