怎么简算5.6*[4.8-4.8/1.5]

来源：学生作业帮助网编辑：作业帮时间：2024/04/29 16:03:05

5.6*[4.8-4.8/1.5]
=28/5*[24/5-(24/5)/(3/2)]
=28/5*(24/5-16/5)
=28/5*8/5
=224/5

5.6*[4.8-4.8/1.5]
=5.6*[4.8-4.8*(2/3)]
=5.6*(4.8-3.2)
=5.6*1.6
=(28/5)*(8/5)
=224/25.

5.6*[4.8-4.8/1.5]
=5.6*4.8*(1.5-1)/1.5
=5.6*4.8*0.5/1.5
=5.6*4.8/3
=5.6*1.6
=8.96

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