简便运算:2－6/7÷9/14－2/3
问题描述：
简便运算:2－6/7÷9/14－2/3
答
=2-6/7×14/9-2/3
=2-4/3-2/3
=2-6/3
=2-2
=0那11/12×26－11/12÷1/14呢？=11/12×26-11/12×14
=11/12（26-14）
=11/12×12
=11