Resposta :
Resposta:
5/8 +(- 17/8 )+ 7/8 +(-15/8)
5/8 - 17/8 + 7/8 - 15/8
5-17+7-15/8
12 - 17 - 15 / 8
12 - 32/8
- 20/8 = -10/4 = -5/2
Resposta:
5/8 +(- 17/8 )+ 7/8 +(-15/8)
5/8 - 17/8 + 7/8 - 15/8
5-17+7-15/8
12 - 17 - 15 / 8
12 - 32/8
- 20/8 = -10/4 = -5/2