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与分式有关的概念是《分式》一章的基础,学习时应注意以下几点: 一、注意对分式定义的正确理解一般地,用A、B表示两个整式,A÷B就可以表示成A/B的形式,如果B中含有字母,式子A/B就叫做分式,学习这一定义应明确①分式A/B中的A、B必须都是整式;笼统地说:分母含有字母的代数式是分式是错误的. 如与就不是分式,因前者的分子, 后者的分母都不是整式.(关于、的
The concept related to the fractional formula is the basis of the “fractional” chapter. When learning, the following points should be noted: 1. Pay attention to the correct understanding of the definition of fractional expression. Generally, use A and B to represent the two integral formulas. A÷B It can be expressed in the form of A/B. If B contains letters, the formula A/B is called a fraction. Learning this definition should make it clear that A and B in a fraction A/B must all be integers; : The algebraic formula in which the denominator contains letters is that the fraction is wrong. If it is not a fraction, because the numerator of the former, the denominator of the latter is not a whole formula. (About,