Hello There!
To simplify fractions, divide both the numerator "top number" and the denominator "bottom number" until you can't go any lower.
EXAMPLE
[tex]\frac{4}{8}[/tex] = [tex]\frac{1}{2}[/tex]
You divide the numerator and the denominator both by 4 which gives you the fraction [tex]\frac{1}{2}[/tex]