I am trying to copy mathematical equations/content that I wrote in Word using the Office equation editor into a Mathematica notebook slide as a Mathematica presentation.

I tried copying the equations as LaTeX or mathML and pasting in Mathematica but it did not work so well; the formatting in mathematica was all wrong. Apart from starting rewriting the equations from scratch, what other simplifying options are out there? I tried saving as an OpenDocument Presentation, without success. I could try picture file but..really...

Isn't there something to make such natural interoperability transitions smoother?

`ImportString[#, "TeX"]&`

which is pretty sophisticated solution to interoperating between TeX and Mathematica for typesetting math: wolfram.com/events/technology-conference-2011/… – Computist Oct 19 '11 at 18:59