AMC8 1992 Problem 2

Past Contests AMC8 AMC 8 - 1992
1

Which of the following is not equal to \dfrac{5}{4} ?

Answer Choices
A. \dfrac{10}{8}
B. 1 \dfrac{1}{4}
C. 1 \dfrac{3}{12}
D. 1 \dfrac{1}{5}
E. 1 \dfrac{10}{40}