0.68/(15/2.4)*1.25怎样简算

分类: 作业答案 • 2022-01-29 15:59:32

问题描述：

答

0.68/(15/2.4)*1.25
=0.68*(2.4/15)*1.25
=(0.68*0.6*4*1.25)/15
=(0.68*0.6*5)/15
=(0.68*3)/15
=0.68/5
=0.136