1. "3︰2" in the ball game indicates the score of both sides of the game, that is, the "difference" ratio, that is, it indicates the relationship of difference, one side gets 3 points, the other side gets 2 points, and the difference between the two sides is 1 point; "3︰2" in mathematics means "3 ︰ 2", which is the ratio of "times" and the quotient is 1.5. In view of this, the number after "ratio" (actually the score) in ball games can be 0, while the number after "ratio" in mathematics (equivalent to divisor) cannot be 0.

Second, the "ratio" in mathematics can be simplified, such as "4: 2 = 2: 1". The same "4￠2" cannot be simplified in a ball game. If simplified, it will not reflect the actual scores of both sides in the game.