Is 2.42 repeating rational

Yes, 2.42 repeating (often written as 2.4̅2̅) is a rational number. A rational number can be expressed as a fraction of two integers, and repeating decimals can always be converted into such fractions. In this case, 2.42 repeating can be represented as ( \frac{242}{99} ), confirming its status as a rational number.