(14/25)/(1/5+1/2)用简便方法计算
问题描述:
(14/25)/(1/5+1/2)用简便方法计算
先找规律填数,再计算每相邻两个数的比值.
答
(14/25)/(1/5+1/2)
=(14/25)/(7/10)
=14/25×10/7
=4/5