小括号0.39乘以0.7小括号除以小括号0.56乘以3.9小括号简算
问题描述:
小括号0.39乘以0.7小括号除以小括号0.56乘以3.9小括号简算
答
(0.39*0.7)/(0.56*3.9)
=(0.39*0.7)/(5.6*0.39)
=0.7/5.6
=1/8