Really, now?!? The denominator always represents the note value, hence the 4, which represents a quarter note, 8, which represents an eighth note, 16, which represents sixteenth notes, 32, which represents thirty-second notes, and 64, which represents sixty fourth notes. With that being said, there is no such thing as 7/5, no matter how you type or write it. If it is ('such a thing'), explan what notational value corresponds with the denominator, since this value always represents the notes that were mentioned earlier.
I know that you're astute in this thang right here, and so am I. I would like you to
show me an example of a 7/5 piece of music, with the explanation and all. Truss, there isn't any formality to music theory; it's the backbone of what we as musicians do. I've heard of 15/8, 17/16, 25/16, 13/4, etc, but there isn't a 7/5. Notice the pattern of the denominator.
The numerator, you could always play with, however, the notational value is always 'textbook' (again, see the explanation above).
I'll wait for you to post those examples, along with the explanation.