how do you divide a fraction Man it stinks not knowing how to divide a fraction on calculator

Dividing a fraction is pretty easy, let's use an example problem. 

${2 \over3}/{4 \over5}=x$

Let's find x.

${2 \over3}/{4 \over5}=x$

Flip the second fraction and multiply.

${2 \over3}*{5 \over4}=x$

${10 \over12}=x$

So, ${2 \over3}/{4 \over5}={10 \over12}$