约分是数的整除和分数的基本性质的综合运用。在分数乘除法中,要迅速准确地求出结果,往往需要约分,所以培养学生掌握约分的技能很重要。约分的过程其实是学生的心理活动的一个过程。首先他要用“最简分数”的概念去判断分数应不应该约分,最后还要检验所得的分数是不是最简分数,这是一个抽象思维的过程。其次,在计算 The divisions are the integral use of divisibility and the basic nature of scores. In the fractional multiplication and division method, it is often necessary to provide a quick and accurate result evaluation. Therefore, it is very important to cultivate students’ abilities to grasp the relevant points. About the process of dividing the students is actually a psychological activity. First of all, he should use the concept of “the simplest fraction” to judge whether the score should be divided or not. Finally, it is necessary to test whether the obtained score is the simplest fraction. This is an abstract thinking process. Second, in the calculation