what is a 5 wu jiao?
The People's Bank of China started issuing these 0.5 Chinese Yuan banknotes in 1980. They were withdrawn from circulation in 1999. The banknote of 5 Wu Jiao is the equivalent of 0.5 Chinese Yuan. The Jiao is a subunit of the Chinese Renminbi. 10 Jiao is the equivalent of 1 Yuan.