Answer
Proper: None!
Improper: $\frac{12}{12}$, $\frac{15}{11}$, $\frac{13}{12}$, $\frac{11}{8}$, $\frac{17}{17}$, $\frac{19}{12}$
Work Step by Step
A fraction is improper when the numerator is greater than or equal to the denominator. Since all of the fractions in this set have numerators that are greater than or equal to the denominator, they are all improper!