To make sure that this is not something wrong with my code, I have used the code shown in Links in epub and epubcheck · Issue #766 · rstudio/bookdown · GitHub

```
library(git2r)
library(bookdown)
local_path = "bookdown-demo"
git2r::clone("https://github.com/rstudio/bookdown-demo.git",
local_path = local_path)
epub_file = bookdown::render_book(
"index.Rmd",
bookdown::epub_book())
```

It generates the same Warning that I have in my own code:

```
[WARNING] Could not convert TeX math
SE = \sqrt(\frac{p(1-p)}{n}) \approx \sqrt{\frac{1/3 (1 - 1/3)} {300}} = 0.027
, rendering as TeX
[WARNING] Could not convert TeX math p = \frac{a}{b}, rendering as TeX
[WARNING] Could not convert TeX math
SE = \sqrt(\frac{p(1-p)}{n}) \approx \sqrt{\frac{1/3 (1 - 1/3)} {300}} = 0.027
, rendering as TeX
```

Any suggestions on how to fix it?

Thanks

TS