Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
There is a pattern. All the odd numbers are positive. [tex]\frac{19}{20}[/tex], [tex]\frac{17}{20}[/tex], [tex]\frac{3}{20}[/tex], [tex]\frac{1}{20}[/tex] and the even numbers are positive [tex]\frac{-18}{20}[/tex], [tex]\frac{-16}{20}[/tex], [tex]\frac{-4}{20}[/tex], [tex]\frac{-2}{20}[/tex]. The three dots in between mean to include the fractions inbetween [tex]\frac{-16}{20}[/tex] and [tex]\frac{-4}{20}[/tex]. This is [tex]\frac{15}{20}[/tex] to [tex]\frac{5}{20}[/tex]. Because all the fractions have a denominator of 20 every number between 5 and 15 is the numerator and 20 is the denominator.
numerator/denominator
