[0.276÷13.9+(2-0.47)÷3/20]÷102.2+3.4×1又4/17 等于多少?请写上计算过程!

问题描述:

[0.276÷13.9+(2-0.47)÷3/20]÷102.2+3.4×1又4/17 等于多少?请写上计算过程!

=[0.019856+10.2]/102.2+3.4
=3.5