Respuesta :

Answer:

17/18

Step-by-step explanation:

Since 9 is a multiple of 18 ( 9 x 2=18), multiply 4/9 by 2, which will leave you to 8/18 , 8+9 equals 17, and you don't add the denominators so it should equal to 17/18

17/18.
multiply the first fraction by 2 to get 8/18. then add 8/18 to 9/18 = 17/18. leave the denominator as 18 and do not add.