Formula question in a report

[Fly Boy 5]

I have a formula to add travel hrs and another to add work hrs.

=Sum([TRAVELREG]) =Sum([WRKREG])

Can you give me the formula to add the two together?

Thanks

 

[KARL DEWEY]

Try this --
=Sum(Nz([TRAVELREG], 0) + Nz([WRKREG], 0))