Respuesta :

Answer:

4/5 and 3/4 are not the same, so maybe you should write Not Defined or something?

Step-by-step explanation:

Answer:

31/20

Step-by-step explanation:

Get a common denominator for the numbers:

4/5 = 16/20

3/4 = 15/20

4/5+3/4 = 16/20+15/20 = 31/20