(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算

来源:学生作业帮助网 编辑:六六作业网 时间:2024/07/10 17:11:59
(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算

(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算
(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算

(9+2/7+7+2/9)/(5/7+5/9)用简便方法计算