66.6除以3.14乘62.8乘21.3除以6除以7.1,怎么简算?

问题描述:

66.6除以3.14乘62.8乘21.3除以6除以7.1,怎么简算?
写出简算步骤

=66.6*(1/3.14)*62.8*21.3*1/6*(1/7.1) 交叉约分
=666