Here is the equation written in mathjax

```
$$y=\frac{1 eV x^2}{2 md v^2}y$$
```

but it renders like this

but i want to show like this

i know one idea like this

```
$$y=\frac{1}{2}\frac{ev}{2md}\frac{x^2}{v^2}$$
```

is there anyway i could write using only \frac one time? It would be better isn't it than writing \frac theree times and this may be just be example ðŸ™‚

thank you .

## Best Answer

TeX and MathJax are not clairvoyant. If you tell them to typeset one fraction, they happily comply. But one fraction will have just one fraction line.

Your formula should be typeset as three separated fractions:

or, maybe better,

(spaces are optional, but make for good reading).

This is a MathJax rendering of the same:

but remember this is browser and machine dependent.

Using

`{1\over 2}`

is deprecated in LaTeX, so, unless you use Plain TeX for your documents, it's better to use`\frac`

also in MathJax. There would be no advantage with it, because`\over`

makes just one fraction line, just like`\frac`

.