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

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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

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
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

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
(0.39*0.7)/(0.56*3.9)
=(0.39*0.7)/(5.6*0.39)
=0.7/5.6
=1/8