7.575÷[(7.91-4.16)×0.2]=7.575÷[3.75×0.2]=7.575÷0.75=(10.1x0.75)÷0.75=10.1。
7.575÷[(7.91-4.16)×0.2]=7.575÷[3.75×0.2]=7.575÷0.75=(7.575×100)÷(0.75×100)=757.5÷75=10.1
原式=7.575/(3.75x0.2)=7.575/0.75=7575/750=1.1
解如下图所示