(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?

来源:学生作业帮助网 编辑:作业帮 时间:2018/11/14 12:23:45
(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?(-1/

(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?
(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?

(-1/30)÷(2/3-1/10+1/6-2/5)计算怎样算?
(-1/30)÷(2/3-1/10+1/6-2/5)
  =(-1/30)÷2/3-(-1/30)÷1/10+(-1/30)÷1/6-(-1/30)÷2/5
  =(-1/30)×3/2-(-1/30)×10+(-1/30)×6-(-1/30)×5/2
  =(-1/30)×(3/2-10+6-5/2)
  =(-1/30)×(-5)
  =1/6

我简略的写了算法,希望可以帮到你,祝你学习愉快~

 

其实很简单,先算括号内的加减,最后算外边的除法,具体算法如下: