# How do you tell whether the sequence 3/4, 7/8, 1, 9/8, 5/4 is arithmetic?

Mar 4, 2017

Here $\frac{7}{8} - \frac{3}{4} = 1 - \frac{7}{8} = \frac{9}{8} - 1 = \frac{5}{4} - \frac{9}{8} = \textcolor{red}{\frac{1}{4}}$
As the difference is always same i.e. $\frac{1}{4}$