Question

2. Escriba que propiedades se usa en cada caso.
a. 2/5 + (-8/5) = (-8/5) + 2/5 = 2 +(-8) +5 =
--6/5 + 0 = 0 + (-5/5) = -6/5.
b. 7/2 + [3/4 + 7/3]
[7/2 + 3/4] +7/3
7/2 + 9 +28 -12
28 +6 = 8 + 7/3
7/2 +37/12
34/8+7/3
84 +74 - 24
102 + 56 =24
158/24
li 11 11 11 11
158/24
158/24 + (-158/24) = 158/24 + (-154/24)
0
0​

Answer 1

no se, lo siento mucho :D