Answer
a) See graph
b) See graph; $\dfrac{7}{8}\lt \dfrac{5}{4} $
Work Step by Step
a) Plot the number $\dfrac{5}{4}$ on the real number line.
b) Plot the number $\dfrac{7}{8}$ on the number line.
Then plot both numbers on the same number line. As $\dfrac{7}{8}$ is to the left of $\dfrac{5}{4}$, $\dfrac{7}{8}$ is smaller than $\dfrac{5}{4}$.
$\dfrac{7}{8}\lt \dfrac{5}{4} $
