The staircase had carpet, we want to remove the carpet and paint the stairs in their "wooden" state.
On removing the carpet we have treads like this:
We do not have access from "behind" the staircase.
Is this repairable or replaceable in a reasonable time/budget? (not "you'd have to dismantle the whole upstairs" level of complexity).
Edited to add: is it normal for treads to crack this way or do I have a more fundamental problem? House was built in the 1960s, I don't know if the staircase dates back to then but probably it does.
Edit2: Happy to go with a cosmetic "less than ideal"(visible cracks etc) as long as it's structurally sound.