Q: My ipad will not update iOS as it says I do not have enough storage

HI,

i have an update available in settings, but it won't update as it says I do not have enough storage. I have updated so I have  enough ( I think?)

It says I need at least 2.4gb of storage,  I have realised the upgrade I have done to storage is to iCloud,  but my ipad only shows 2gb and I don't know how to change this.

i Know I am being a complete idiot!!

Thanks in advance