Question

Calcule e simplifique se possivel:
A) 9/2 + 7/4 + 2/3
B) 2/5 + 1/10+1/2
C)2/4 + 5/6 + 1/8
D)2/7+1/10+3/2
E)7/8-1/6
F) 1/2 - 1/5
G)8/10+1/5
H)5/4+1/2

Answer 1

A) 9/2 + 7/4 + 2/3
MMC de 2 e 3 e 4 = 12
54/12 + 21/12 + 8/12
83/12

B) 2/5 + 1/10+1/2
MMC de 2 e 5 e 10 = 10
4/10 + 1/10 + 5/10
10/10
1

C)2/4 + 5/6 + 1/8
MMC de 4 e 6 e 8 = 24
12/24 + 20/24 + 3/24
35/24

D)2/7+1/10+3/2
MMC de 2 e 7 e 10 = 70
20/70 + 7/70 + 105/70
132/70 (simplificar por 2)
66/35

E)7/8-1/6
MMC de 6 e 8 = 24
21/24 - 4/24
17/24

F) 1/2 - 1/5
MMC de 2 e 5 = 10
5/10 - 2/10
3/10

G)8/10+1/5
MMC de 5 e 10 = 10
8/10 + 2/10
12/10 (simplificar por 2)
6/5

H)5/4+1/2
MMC de 2 e 4 = 4
5/4 + 2/4
7/4