6分之1×（5—3分之2）用简便算法计算
问题描述：
6分之1×（5—3分之2）用简便算法计算
答
1/6 * (5 - 2/3)
= 1/6 * ( 6-1 - 2/3)
=1/6 * (6 - (1+2/3))
=1/6 * (6 - 5/3)
= 1 - 5/18
= 13/18