second term= mixed fraction 6 1/2 and Tenth term= mixed fraction 18 1/2, determine the common difference.
To find the common difference, we need to subtract the second term from the tenth term.
10th term - 2nd term = 18 1/2 - 6 1/2
= 18 - 6 + 1/2 - 1/2
= 12
Therefore, the common difference is 12.