Fractions in HTML and Unicode

Not a food post, but about computer issues relating to recipes.

I haven't been consistent about this, but sometimes I try to put vulgar fractions into recipes as individual characters, rather than digits separated by a "/". It looks better, but I wonder if everyone sees them correctly.

Only three vulgar fractions are in ISO-Latin-1, so they have their own HTML codes:

¼ (1/4, HTML ¼)
½ (1/2, HTML ½)
¾ (3/4, HTML ¾)

I assume those work fine for most people. Lots more are in Unicode, so they can be added directly, but I don't know how widely they are supported by browsers, operating systems, and font character sets. I wouldn't be surprised if they disappear for some people if they set their font differently. Like these:

⅓ (1/3)
⅔ (2/3)
⅕ (1/5)
⅖ (2/5)
⅗ (3/5)
⅘ (4/5)
⅙ (1/6)
⅚ (5/6)
⅛ (1/8)
⅜ (3/8)
⅝ (5/8)
⅞ (7/8)

Not all are common in recipes, but many are helpful. I use some of them, but I don't know how to enter them except by cut and paste, so they are here mostly for my reference.

Let me know if you get funny characters where fractions should be.