# half a hin

"two liters" or "half a hin (which is two liters)". "Half" means one part out of two equal parts.  

# a third of a hin

"1.2 liters" or "One and one-fifth liters" or "half a hin (which is 1.2 liters)" 

# one-fourth of a hin

"a liter" or "one-fourth of a hin (which is almost 1 liter)"