Gostaria de resolver as expressões numéricas obrigado:

a)1/5-6/8+81/9:27/15= b)3/2:6/8+4/12-9/2= c)-5/4:1/2-{-2/4}=

d)2/3-5/4+27/18:9/2= e)1/7:5/14+2/10-7/2= f)8/10+3/6=

g)2/6-3/10+17/34:10/4= h)1/2:3/4+2/6-3/4= i)2/14-1/2.10/4=

1
LoL... aumenta os pts ae ;) vai dar muito trabalho não por ser dificil ,mas por que vai ser muito cansativo.
dobrei para 40 agora vai ou vc não sabe
Blz
Se estiver alguma errada me avise.

Respostas

2013-08-02T19:43:28-03:00
A) 1/5-6/8+81/9:27/15
8/40-30/40+81/9:27/15
-22/40+81/9:27/15
-22/40+81/9.15/27
(-22:10/40:10)+(1215:81/243:81)
(-2.3/4.3)+(15.4/3.4)
-6/12+60/12
54/12

B)3/2:6/8+4/12-9/2
3/2.8/6+4/12-9/2
24/12+4/12-9/2
2/12-(9.6/2.6)
2/12-54/12
-52/12

C)-5/4:1/2-{-2/4}
-5/4:(1.2/2.2+2/4)
-5/4:2/4+2/4
-5/4:4/4
-1/4

D)2/3-5/4+27/18:9/2
(2.4/3.4)-(5.3/4.3)+27/18:9/2
8/12-15/12+27/18:9/2
-7/12+27/18.2/9
-7/12+54/162
(-7.6/12.6)+(6.4/18.4)
-42/72+24/72
-18/72

E)1/7:5/14+2/10-7/2
1/7.14/5+2/10-7/2
(14:7/35:7)+2/10-7/2
2/5+2/10-7/2
(2.2/5.2)+2/10-7/2
4/10+2/10-7/2
6/10/-(7.5/2.5)
6/10-35/10
6/41

F)8/10+3/6
(8:2/10:2)+(3:3/6:3)
(4.2/5.2)+(1.5/2.5)
8/10+5/10
13/10

G)2/6-3/10+17/34:10/4
(2.5/6.5)-(3.3/10.3)+17/34:10/4
10/30-9/30+17/34:10/4
1/30+17/34:(10:2/4:2)
1/30+17/34:5/2
1/30+17/34.2/5
(1.17/30.17)+(34.3/170.3)
17/510+102/510
119/510

H)1/2:3/4+2/6-3/4
4/6+2/6-3/4
6/6-3/4
24/24-18/24
6/24
I)2/14-1/2.10/4
(2.4/14.4)-(10.7/8.7)
8/56-70/56
-62/56