A 4 cm long iron wire is divided into 5 sections on average, the length of each section is ((())/(())) of the iron wire, how many meters is the length of each section.
一根长4厘米的铁丝平均分成5段，每段的长度是这根铁丝的((())/(()))，每段长多少米．
<result>0.0008</result>