1. fraction can not only represent a specific number, but also the ratio of two numbers, that is, fraction. In this case, the meanings of fraction and percentage are essentially the same, but the expressions are different.

2. The application problems of fractional multiplication and division are all application problems with unique solutions arising from the extension of the meaning of fractional multiplication and division. We all know and understand the score in the stem of the question from the meaning of the score rate (there is no unit name). The score rate has the same meaning as the percentage in the application question, so the quantitative relationship is consistent.

3. In calculation, scores and percentages can be interchanged.