# What is the common ratio if the first two terms of a geometric series are 1/3 + 1/9 + ...?

##### 1 Answer

Jan 25, 2016

#### Answer:

Taker the ratio 1/3

#### Explanation:

The fixed multiplier between terms in a sequence is called the common ratio, r, referring to the fact that the ratio (fraction) of the second term to the first term yields this common multiple.

Thus your ratio is 1/3