I had both in a 55-gallon and no one killed each other. I added 4 young rosy barbs to a tank that had 1 mature and 2 immature angels. They all co-existed for a long time. BUT, as you can see, I had the angels first - the opposite of your situation.
I use the past tense here because my big angel at a teeny tiny piece of undissolved buffer and my youngsters fell prey to a killer in the tank.