1. The mathematical expression "6 divided by 2" equals 3. This is because when 6 is divided by 2, the result is 3 as the quotient.2. In contrast, the expression "6 divides 2" is not in accordance with mathematical conventions. If the intention is to express the division of 6 by 2, the result is also 3, as previously mentioned.3. As for "2 divided by 6", the result is 0.3333 (3)……, which is 1/3. This is because 2 divided by 6 yields a decimal, with the數字3無限循環.4. The naming and conventions in science are fundamental to its advancement. For instance, the Fourier Transform, proposed by the French mathematician Joseph Fourier as a set of principles, was later widely accepted and named the "Fourier Transform". Such naming conventions facilitate academic communication and a unified understanding.5. Rules and conventions in mathematics ensure consistency in expression. Just as 1 plus 1 equals 2, this result is obtained according to the basic rules of addition in mathematics. This result is widely accepted globally and forms the foundation of mathematical education.