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"El" is a form of "el", a definite article which is often translated as "the". "Las que" is a phrase which is often translated as "the ones that". Learn more about the difference between "las que" and "el" below.
las que
A phrase is a group of words commonly used together (e.g., once upon a time).
a. the ones that
Las entradas son numeradas, excepto las que dicen "sin numerar".The tickets have seat numbers, except for the ones that say "unnumbered."
b. the ones who (people)
María y Ana son las que organizaron la fiesta.María and Ana are the ones who organized the party.
el()
A definite article is a word that identifies a noun as specific or known to the speaker (e.g., the girl).
