Fractions in crosswords

Hi, I have been trying to use LaTex script to create fractions in a crossword but am not having luck. Is this possible and if so, what is the correct script to add? 

Thank you

** I have just figuered it out $$\frac{4}{2}$$

This is where I found the answer- How do you write a fraction(a/b) in LaTeX? (physicsread.com)