common fraction

例句：

1. 1. The teacher explained the concept of commonfractions to the students.
   老师向学生们解释了公比分数的概念。
2. 2. Inmathematics, commonfractions are used to solveproblems involving division.
   在数学中，公比分数用于解决涉及除法的问题。
3. 3. Common fractions can be found inmany everyday objects, such as cups andplates.
   公比分数可以在许多日常物品中找到，比如杯子和盘子。