How to write math formulas while asking the question on This Website ?

How to write math formulas while asking the question on This Website ?

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While asking a question if you want to add math formulas , you can use latex

https://www.overleaf.com/learn/latex/Learn_LaTeX_in_30_minutes {This link is useful }

You can write latex under $$Your Latex$$ in this type of syntax 

For eg:: i want to ask a question (900/100)*6 ok

we can write this in that syntax $$\frac{900}{100}\times6$$