简便计算:(0.4+4/25除1.6)除3.5

问题描述:

简便计算:(0.4+4/25除1.6)除3.5

(0.4+4/25÷1.6)÷3.5
=(0.4+0.1)÷3.5
=0.5÷3.5
=1/7�������ú�