对于“最大的分数单位”这个问题,教师中普遍存在两种观点:有的认为是1/2,也有的认为是1/1或1。后者的理由是:在分数的定义补充规定中,形如m/n(n、m都是整数,且n≠0)的数也是分数。因此补充后的分数定义中,若n=1时,分数的单位1/n=1/1最大,即1/1是最大的分数单位,其实这样的解释是有偷换分数单位概念之嫌的。首先我们应明白分数单位是在分数的一般定义这个特定条 There are two common viewpoints among teachers regarding the problem of “the largest fractional unit ”: some say 1/2, others think 1/1 or 1. The latter is due to the fact that in the supplemental definition of the score, the number of m / n (n, m are integers and n ≠ 0) is also a fraction. Therefore, after the definition of the supplement, if n = 1, the unit of fraction 1 / n = 1/1 is the largest, that is 1/1 is the largest fraction unit, in fact, this explanation is the concept of stealing the fractional unit . First of all we should understand that the unit of the score is the specific one of the general definition of the score