[Solved] Calculate Tote odds

[anybloodyid]

Hi,
I would like to know how to show the odds for a tote calculator.
I downloaded one from the web but I would like to build my own
The idea is you have an amount i.e £300 and that amount is divided by the number of winners i.e 10 so each winner gets £30
The program I downloaded shows the odds as i.e 3/1 or 11/2 etc how can I do this?
I ask because I want to run a fund raiser for our local community and tote betting seems the easiest and best way.
If I'm honest I don't really need to show the odds just the amount you would win but I'm curious.

Thanks for looking