I wrote a firefox addon to make it easier to input them. https://addons.mozilla.org/en-US/firefox/addon/unicode-keyboard/ https://addons.mozilla.org/en-US/fire

I wrote a firefox addon to make it easier to input them. https://addons.mozilla.org/en-US/firefox/addon/unicode-keyboard/ https://addons.mozilla.org/en-US/firefox/addon/unicode-keybo... \frac{13}{117} → ‌13⁄117‌