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"Lo cual" is a phrase which is often translated as "which", and "los cuales" is a phrase which is also often translated as "which". Learn more about the difference between "lo cual" and "los cuales" below.
lo cual(
loh
 
kwahl
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. which
Silvia está completamente curada después de la operación de corazón que le hicieron, lo cual es un gran alivio.Silvia is completely cured after the heart surgery she underwent, which is a great relief.
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los cuales(
lohs
 
kwah
-
lehs
)
A phrase is a group of words commonly used together (e.g., once upon a time).
phrase
a. which (things)
Hay casos en los cuales no tiene sentido operar porque el problema se resuelve por sí solo.There are cases in which it doesn't make sense to operate because the problem sorts itself out.
b. who (people)
Los soldados están a las órdenes de los cabos, los cuales están a su vez a las órdenes de los sargentos.Soldiers are at the corporals' command, who on their turn are at the sergeants' command.
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