Difference between being ready and getting ready
Please let me know what the difference between being ready and getting ready is.

Question

Answer

Somebody is 'getting ready' they are not yet ready, but are currently doing whatever they need to do to become ready. If somebody 'is ready' then they are already ready.

Answer

To be (adjective) 
= the static state of being (adjective)
I am sick.
Joe is tired.
Susan is ready.

To get (adjective)
= to change state from not being (adjective) to being (adjective)
I am getting sick.
Joe is getting tired.
Susan is getting ready.

Answer

It's just a matter of when in the process we are talking about.
If you are still doing things to get ready, say putting on your shirt, for example, ("getting ready" meaning putting on the clothes to go somewhere ) it we say you are getting ready. 
But after you have put on everything, then you "are ready"

No pierdas la oportunidad de aprender un idioma desde la comodidad de tu casa. ¡Explora nuestra selección de profesores de idiomas con experiencia e inscríbete ya en tu primera clase!