# What is the missing sequence in 1 3/8, 1 3/4, 2 1/8, __, 2 7/8?

$2 \frac{1}{2}$
This is an arithmetic sequence, which you discover when you subtract consecutive terms. There is a constant difference of $\frac{3}{8}$ between each two terms.
So, if we add $\frac{3}{8}$ to $2 \frac{1}{8}$, we get the missing value.