(1-5/2)÷(1.25+20/3×5 等于多少,简便计算

问题描述:

(1-5/2)÷(1.25+20/3×5 等于多少,简便计算

(1-5/2)÷(1.25+20/3×5)
=0.6÷(1.25+0.75)
=0.6÷2
=0.3