fraction /ˈfrækʃən/ n. ［c］ 1.一小部分：She’s careful with her money, and spends only a fraction of her earnings. 她用钱很小心，只花她工资的一小部分。［考句］ We rarely perceive more than a minute fraction of the sights and sounds that fall upon our sense organs; the great majority pass us by. 我们只能感受到很小一部分看到的东西和听到的声音，绝大多数都感受不到。2. 分数：a complex/compound fraction 繁分数；a common fraction 普通分数；a proper fraction 真分数；an improper fraction 假分数1/2, 1/4, and 2/3 are fractions. 二分之一、 四分之一和三分之二都是分数。