17/38乘39怎样简便计算?
问题描述:
17/38乘39怎样简便计算?
答
17/38×(38+1)
=17+17/38
=17 17/38
17/38乘39怎样简便计算?
17/38×(38+1)
=17+17/38
=17 17/38