not interchangeable in the true meaning of the word.In your case,well ,you can use a plate with a slot,the location of the holes needed to use your on caliper will be an eighth of an inch off.Too much to work yet not enough space for a clean hole,just a slot.I did it once,scavenging,years ago.I never recomend it,I say it now because you have only one to do and you're broke.Some want to use 700's on bikes that take 27"s but
that's not bright at all,as the man said just now,27' wheels are cheaply and easily had,even new.You'll hear more folkes state things too.You'd better get the correct wheel,otherwise it's butchery.