There are latex to unicode convertors [1], that understandably only convert a very limited subset of latex to unicode. They are not very clever at the moment, a

There are latex to unicode convertors [1], that understandably only convert a very limited subset of latex to unicode. They are not very clever at the moment, and I imagine could be improved to actually process \frac in your way. [1] https://www.unicodeit.net/ https://www.unicodeit.net/