if you turn 6 5/15 into an improper fraction, you get 95/15. then you turn 8 1/5 into and improper fraction and get 41/5. next you multiply 41/5 and 3/3 to get 123/15 so you have common denominators. after that you add the two numerators and get 218/15. then simplify if possible or turn it into a mixed number!:)
