Respuesta :
Answer:
Step-by-step explanation:
1) Make all the fractions have the same denominator.
- To do that you need to find the LCM (least common denominator) of 4, 9, and 7.
(look at image 1)
-Then apply the number you multiply the original denominator by to the original numerator
(look at image 2)
-Add the fractions together
(look at image 3)
![Ver imagen zainasayeed1](https://us-static.z-dn.net/files/de4/47ce669c30d704a8bd7a68dd2fc2cf51.png)
![Ver imagen zainasayeed1](https://us-static.z-dn.net/files/da9/290a6e7954f9d97d5641bcaa3d79664e.png)
![Ver imagen zainasayeed1](https://us-static.z-dn.net/files/d54/b0e5670a1c0d548ec869ac24eeaa539c.png)