Question

Caucule e simplifique os resultados, quando for possível.
A)1/2+2/3
B)5/6+2/3
C)4/5+2/3
D)9/2+7/4+2/3
E)2/5+1/10+1/2
F)2/7+1/10+3/2
Por favor respondam com o cálculo

Answer 1

A)mmc de 2 e 3 = 6

6 ÷ 2 = 3 x 1 = 3
6 ÷ 3 = 2 x 2 = 12

3/6 + 12/6
R=15/6 simplificando 5/2

B) mmc de 6 e 3 = 6

6 ÷ 6 = 1 x 5 = 5
6÷ 3 = 2 x 2 = 4

5/6 + 4/6
R=9/6 simplificando = 3/2

C) mmc de 5 e 3 = 15

15 ÷ 5 = 3 x 4 = 12
15 ÷ 3 = 5 x 2 = 10

10/15 + 12/15
R=22/15

D) mmc de 2 4 e 3 = 12

12 ÷ 2 = 6 x 9 = 54
12 ÷ 4 = 3 x 7 = 21
12 ÷ 3 = 4 x 2 = 8

54/12 + 21/12 + 8/12
R=83/12

E) mmc de 5 10 e 2 = 10

10 ÷ 5 = 2 x 2 = 4
10 ÷ 10 = 1 x 1 = 1
10 ÷ 2 = 5 x 1 = 5

4/10 + 1/10 + 5/10
R=10/10 simplificando = 1/1

F) mmc de 7 10 e 2 = 70

70 ÷ 7 = 10 x 2 = 20
70 ÷ 10 = 7 x 1 = 1
70 ÷ 2 = 35 x 3 = 105

20/70 + 1/70 + 105/70
R=126/70 simplificando 63/35 simplificando mais = 9/5