can I delete previous versions of software
I am tidying up disk space on my Macbook Air which is running OS X Yosemite v 10.10.3. I also have the latest versions of Keynote (v6.5.3), Numbers (v3.5.3) & Pages (v5.5.3).
So my question is; can I safely remove/ iWorks 09 which has Keynote v5.3, Numbers v2.3 & Pages v4.3?
MacBook Air, 2.13 GHz