#### Answer

$\frac{m}{5}$

#### Work Step by Step

If we want to get the common ratio, we just have to divide any two subsequent terms:
$r=\frac{a_2}{a_1}=\frac{\frac{4m}{5}}{4}=\frac{m}{5}$

Published by
Pearson

ISBN 10:
0-32184-874-8

ISBN 13:
978-0-32184-874-1

$\frac{m}{5}$

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