Question

How to solve equations with variable in denominator?

Answer 1

In general you can multiply through by the LCD

For example solve :-

2/x  +  1 / (1+ x) =  11/12

The LCD is 12x(x + 1).

Now we multiply each term by 12x(x + 1) 

2*12(x+1) + 12x = 11x(x + 1)

and this is solved in the usual way.