解:3/5-5/11+7/5-6/11=(世谈芹3/5+7/5)-(侍慧5/搜毕11+6/11)=2-1=1
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3/5-5/11+7/5-6/11用简手虚埋誉山便方法计算毕蚂=(3/5+7/5)-(5/11+6/11)=2-1=1
3/5-5/11+7/5-6/11=3/5+7/5-(6/11+5/11)=2-1=1