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一、分数的概念和性质1.分数的定义。把整体“1”平均分成几份。表示这样的一份或几份的数,叫做分数。如果把整体“1”平均分成 n 份,表示这样一份的数记作(1/n),读作 n 分之一;表示这样 m 份的数记作(m/n),读作 n 分之 m。对分数的定义,要着重理解:(1)我们可以把任何一件或一些事物看作整体“1”。如一个饼,一个计量单位,一个数,一堆苹果,一个学校的学生人数等,都可以看作整体
First, the concept and nature of scores 1. The definition of scores. Divide the overall “1” into equally divided parts. The number of such copies or copies, called scores. If the whole “1” is divided equally into n parts, the number of such a part is recorded as (1 / n), which is read as the n-th part. The number of m parts is written as (m / n) M The definition of the score, we should focus on understanding: (1) We can put any one or something as a whole “1”. Such as a cake, a unit of measurement, a number, a pile of apples, a school student population, etc., can be regarded as a whole