how to solve this question:

formula:
f(x)= x+3
-----
x

solve:
f(x) = 1/4


I solved f(1/4) but I couldn't solve that one... what is the diffrence?

thanks :)

f(x)=\frac{x+3}{x}

f(\frac14)=\frac{\frac {1}{4}+3}{\frac14}

f(\frac14)=\frac{\frac {1}{4}+\frac{12}{4}}{\frac14}

f(\frac14)=\frac{\frac {13}{4}}{\frac14}=13

--- difference from what?