The expression "1/p" represents the mathematical concept of the reciprocal of a number "p." In simple terms, it means that if you take a number and divide 1 by that number, you get its reciprocal. For example, if p is 2, then 1/p equals 0.5. This concept is fundamental in mathematics and is used in various calculations, including fractions and ratios. Reciprocals are important in many areas, such as algebra and calculus. They help in solving equations and understanding relationships between numbers. The reciprocal of a number is also related to concepts like proportions and rates, which are essential in fields like physics and economics.