LOS ANGELES — He is Jewish. He is Latino. He can break dance and play jazz piano. He speaks nearly impeccable Spanish. He has talked longingly about growing his own vegetables and maybe even raising his own chickens. He lives on this city’s hip east side.

Three months into office, Mayor Eric Garcetti seems to embody a host of ethnic, ideological and cultural strains that are transforming Los Angeles. At the same time, he is avoiding any temptation of red carpet glamour here, a striking change from his predecessor, Antonio Villaraigosa, who came in as mayor riding a powerful wave of popularity but left with decidedly less regard.

“In some ways everything I have done has prepared me for this job,” Mr. Garcetti said recently in his still mostly barren City Hall office, which he plans to decorate with local historical memorabilia. “Governing Los Angeles is all about cultural literacy — nobody can be completely literate across the board here, but if you don’t have some understanding of many of those cultures, you will be left behind.”