The first question to ask is obvious.

[lagoo]

Hi, I came across the sentence below:

“The first question to ask is obvious.”

But, if I change it into “The first question to be asked is obvious”, is it still acceptable?
If both versions are valid, there should be some differences, I suppose.

Your explanation would be appreciated.

 

[Rover_KE]

In what context did you find the sentence?

 

[Tdol]

The change works, but it may exclude the speaker from asking it.