noun, noun which may take the genitive case particle 'no'
half and half; fifty-fifty
Describes an equal split, mixture, or probability. Often used with に or の.
The chances of success are fifty-fifty.
Mix milk and water half and half.
We decided to split the cost fifty-fifty.
I mix milk and soy milk in equal parts and drink it.
I think we have a fifty-fifty chance of winning the match.