Why do people use decimals?

People use decimals to represent fractions in a more precise and manageable way, making it easier to perform arithmetic operations like addition, subtraction, multiplication, and division. Decimals provide a clear understanding of values that fall between whole numbers, such as measurements, currency, and scientific data. They are essential in various fields, including finance, engineering, and statistics, where accuracy is crucial. Overall, decimals simplify complex numbers and enhance clarity in communication.