19/15 OR 1 and 4/5
First find a common denominator, which in this case is 15. So put 15 as each of the fractions denominators. Then multiply the numerator by what you multiplied to the denominator.
EXAMPLE
3/5 x 3/3 = 9/15
2/3 x 3/3 = 10/15 Ten plus nine =s 19. Keep the denominator the same. Turn into a mixed number by figuring out how many times 15 goes into 19 (once) and addng what's left. (4/5) You should get 1 and 4/5