# Page Not Found

The URL `2/proports.html` does not exist.

You might be looking for one of these pages:
- [Пропорції та відсотки](https://math.ed-era.com/proports.md)
- [Відсотки](https://math.ed-era.com/proports/vdsotki.md)
- [Прості та складені числа](https://math.ed-era.com/chislovi_mnozhini/prosti_ta_skladeni_chisla.md)
- [Дробово-раціональне рівняння](https://math.ed-era.com/zagaln_vdomost-2/drobovo-ratsonalne_rvnyannya.md)
- [Дробово-рацiональнi нерiвності](https://math.ed-era.com/ratsonaln_nervnost/drobovo-ratsionalni_nerivnost.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://math.ed-era.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://math.ed-era.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/proports.md`)
- Use `Accept: text/markdown` header for content negotiation