How can we determine if a sequence is arithmetic or not

The video tutorial explains how to find the common difference in a sequence by ensuring all fractions have a common denominator. It demonstrates converting fractions, calculating differences between terms, and identifying an arithmetic sequence. The tutorial concludes with a brief introduction to a problem for practice.

What is the first step to find the common difference in an arithmetic sequence?

How do you ensure that all fractions have a common denominator?

Describe the process of changing fractions to find a common denominator.

Explain how to find the difference between two terms in an arithmetic sequence.

What is an arithmetic sequence and how is it defined?