You can agree to vote together which would negate the advantage the 50% partner has, resulting in a lot of ties and no decisions. Next, you have to figure out what the partnership agreement says about tied votes.

Sure. Why not? But I am interested in why the question. What do you have in mind?

Hi I was wondering in a business partnership, can two partners at 20% and 30% combine together to become a 50% owner??

There are currently three partners, one at 20%,one at 30% and one at 50%....