What is the sum of 7 2/6 + 2 1/4

How to do this , and can some one explain

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

Aline passes through 3,7 and 6,9 what equation represents the line