这个学期,我们学习了分数,知道了分数是由分子、分母和分数线组成的。生活中有很多地方都要用分数,比如一本书有20页,每页是这本书的1/20。分数还可以用来加减呢!比如二分之一加二分之一就是二分之二,也就是一个整体1。为什么会这样呢?妈妈就给我打比方,一个烧饼,平均把它分成二份,每一份就是这个饼的二分之一,合起来不就是一个整体1吗?分数在加减时,如果分母一样,就不管分母,把分子 This semester, we studied scores, knowing that the scores are made up of numerators, denominators, and fractions. There are many places in life to use points, such as a book has 20 pages, each page is 1/20 of the book. Scores can also be used to add or subtract it! For example, one-half and one-half are two-fifths, which is a whole one. Why does this happen? Mom gave me the example, a biscuit, the average is divided into two, each one is the half of the cake, together is not a whole one? Score in the addition and subtraction, if Like the denominator, regardless of the denominator, the numerator