18\7乘以7/3+7/4除以7/18简便计算
问题描述：
18\7乘以7/3+7/4除以7/18简便计算
答
18/7*(28/12+21/12)*18/7
=18/7*49/21*18/7
=108/7
答
=18\7×7/3+7/4×18/7
=18/7×(7/3+7/4)
=18/7×1
=18/7