how do you use the fraction button

Look at this post.

http://web2.0calc.com/questions/how-do-i-type-in-fractions

you click it.......................I think

latex?

\frac{}{}

$$Example:\frac{2}{3}$$

calculation?

Example: 1/3

Math formula?

Example: 4/5

Website calculator?

Example: 6/11