Question

Al resolver 3/12+(—1/8)+(—3/4)+7/20+(—1/2)

Answer 1

3/12 + (-1/8) + (-3/4) + 7/20 +(-1/2)
3/12 - 1/8 - 3/4 + 7/20 - 1/2


como 3/12 = 1/4, entonces:
1/4 - 1/8 - 3/4 + 7/20 -1/2
=10/40 - 5/40 -30/40 + 14/40 -20/40
=24/40 - 55/40
= - 31/40


Saludos.....

Answer 2

Es igual a: ₋93/120 
PROCESO
3/12₋1/8₋3/4₊7/20₋1/2= 30₋15₋90₊42₋60/120= ₋93/120