作业帮[1/6-(5/14-1/3)]*7/9 简便运算
来源：学生作业帮助网 编辑：作业帮 时间：2024/07/04 22:32:49
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[1/6-(5/14-1/3)]*7/9 简便运算
[1/6-(5/14-1/3)]*7/9 简便运算
[1/6-(5/14-1/3)]*7/9 简便运算
[1/6-(5/14-1/3)]*7/9
=(1/6+1/3-5/14)*7/9
=(1/2-5/14)*7/9
=1/2*7/9-5/14*7/9
=7/18-5/18
=2/18
=1/9
[1/6-(5/14-1/3)]*7/9
=[1/6-5/14＋1/3)]*7/9
=【1/6＋1/3-5/14】×7/9
=[1/2-5/14]×7/9
=[1/7]×7/9
=1/9