"They are of the same age."
Translation:Ellos son de la misma edad.
Okay, now I don't understand.. two minutes ago DL corrected my answer "él ES cerca de su edad" on "Él ESTÁ cerca de su edad". And right now it told me that "Ellos están de la misma edad" is wrong? Can someone please help me? I know the basic rules about ser vs. estar but what is the difference here?