I’d like to obtain this in a Markdown cell:
I have found this for a markdown cell but it doesn’t work:
## Set up a proportion:
/frac{n1}{d1} = /frac{n2}{d2}
thank you!
Try:
Set up a proportion:
$$
\frac{n1}{d1} = \frac{n2}{d2}
$$
Notice the backslash instead of the forwardslash for \frac, and the $$ markers for a LaTeX block.
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So cool ! thanks @matthew.brett ! 
Anyway I can have it justified to the left instead of centered?
thanks!
Did you try in-line? For me, this results in what you asked about in your original post:
## Set up a proportion:
$\Large\frac{n1}{d1} = \frac{n2}{d2}$
There’s a good summary of in-line vs. Math Block here. That’s for Jupyter Book but the basics are the same for in-line math vs. match blocks in regards to the symbols.
Read about the tags for the sizes of fonts here.
hey @fomightez, thanks for chiming in!
I’m getting this:
I’m gonna have a look at your links, thanks
If you look at the image in your own post, you’ll observe you are running that in a code cell instead of a markdown cell? (Hint: Markdown cells don’t have ‘Input’ symbols with numbers next to them after hitting shift+Enter.)
It is meant to be run as a markdown cell as noted in your own original post’s title.
Yes! my bad! went too fast on that one…
thanks a lot @fomightez much appreciated 
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