2 koi fish and an oscar fish

Question
i have two 4 inch koi and a 2 inch oscar fish im wandering if they can live in the
same tank together with out them fighting or hurting each other answer me
please ASAP!!!

Answer
The only way you can do this is if you want the oscar to eat the goldfish for dinner.  Plain and simple.  You'd do best to do a little research prior to putting fish that you aren't familiar with together.  Always always read and reasearch first, then do.

Good luck.