Hi,

I have been looking for an answer for some time now, hope you could give me a quick tip.

I have an equation with many divisions inside. i.e:

$\frac{\frac{a_1}{a_2}} {\frac{b_1}{b_2}}$

To make it more readable, I decided to change the large fraction into "/" sign. i.e.

$\frac{a_1}{a_2} / \frac{b_1}{b_2}$

The problem is that the "/" sign remains small, and it is quite ugly.

How do I change the "/" sign to have a big font? How do I make it more readable?

Thanks.