Respuesta :

Answer:

  1

Step-by-step explanation:

The expressions inside parentheses are evaluated first. Doing that gives you ...

  (1+2)/(2+1) = 3/3

A number divided by itself is 1, so ...

  3/3 = 1

The quotient is 1.

The answer is 1 (1 + 2) equals 3 and (2 + 1 = 3). Now 3 divided by 3 is 1.