Respuesta :

Answer:

7 12/15

or as a decimal: 7.8

Step-by-step explanation:

first you need to find the common denominator

3 9/15 + 4 4/15

then add

= 7 12/15

jamilaluckett
Answer: 7 13/15!

Explanation: First, you have to add 3 and 4 so you get 7, than find the gcf and put it as the denominator for both (3/5 = 3/15 and 4/15=4/15)! Than divide, 15 divided by 1 is 15! Now whatever you do to the bottom, do to the top! Do it for the rest than add the numerators than you should get your answer which is 7 13/15!