(784322-213)/(321784+571)的简便运算

分类: 作业答案 • 2021-12-19 23:21:17

问题描述：

(784*322-213)/(321*784+571)的简便运算

答

(784*322-213)/(321*784+571)
=(784*321+784-213)/(321*784+571)
=(321*784+571)/(321*784+571)
=1

(784*322-213)/(321*784+571)的简便运算