Simplification in quantitative techniques refers to the process of reducing complex mathematical expressions or problems into simpler forms that are easier to manage or solve. This is commonly done to streamline calculations, improve understanding, and facilitate decision-making in various fields such as mathematics, economics, engineering, and statistics.

Simplification is essential in quantitative techniques because it promotes understanding, communication, efficiency, accuracy, and applicability, ultimately supporting better decision-making and problem-solving across various domains and industries.