Question

alguém mim ajude por favor

Answer 1

Resposta:

a) 8/10 = 8:2 , 10:2 = 4/5

b) 4/6 = 4:2 =2 6:2 = 3 = 2/3

c) 5/10 = 5:5 =1 10:5 = 2 = 1/2

d) 3/15 = 3:3 = 1 15:3 =5 = 1/5

e)15l20

f) 3/18 = 3:3 = 1 18 :3= 6 = 1/6

g)5/6

h) 8/20 = 8:2 = 4 20: 2= 10 = 4/10 continua 4:2 =2 e 10:2 = 5 = 2/5

Answer 2

A) 4/5 B)2/3 C)1/2

D)1/5 E)3/4 F)1/6

G)0 H)2/5

Explicação passo a passo

A)1/10 + 7/10

1/10 + 7/10

1+7/10

8/10

8÷2/10÷2

4/10÷2

4/5

8/10

4/5

resposta

4/5

B) 5/6 - 1/6

5/6 - 1/6

5-1/6

4/6

4÷2/6÷2

2/6÷2

2/3

4/6

2/3

resposta

2/3

C)1/10 + 7/10 - 3/10

1/10 + 7/10 - 3/10

1+7-3/10

1+7-3

8-3

5

1+7-3/10

5/10

5÷5/10÷5

1/10÷5

1/2

5/10

1/2

resposta

1/2

D) 7/15 - 3/15 - 1/15

7/15 - 3/15 - 1/15

7-3-1/15

7-3-1

7-4

3

7-3-1/15

3/15

3÷3/15÷3

1/15÷3

1/5

3/15

1/5

resposta

1/5

E)7/20 + 1/20 + 7/20

7/20 + 1/20 + 7/20

7+1+7/20

7+1+7

8+7

15

7+1+7/20

15/20

15÷5/20÷5

3/20÷5

3/4

15/20

3/4

resposta

3/4

F)5/18 + 11/18 - 13/18

5/18 + 11/18 - 13/18

5+11-13/18

5+11-13

16-13

3

5+11-13/18

3/18

3÷3/18÷3

1/18÷3

1/6

3/18

1/6

resposta

1/6

G) 7/6 + 4/6 - 5/6 + 3/6 - 9/6

7/6 + 4/6 - 5/6 + 3/6 - 9/6

7+4-5+3-9/6

7+4-5+3-9

14-5-9

14-14

0

7+4-5+3-9/6

0/6

0

resposta

0

H) 1/20 + 3/20 + 11/20 - 7/20

1/20 + 3/20 + 11/20 - 7/20

1+3+11-7/20

1+3+11-7

15-7

8

1+3+11-7/20

8/20

8÷4/20÷4

2/20÷4

2/5

8/20

2/5

resposta

2/5

espero ter te ajudado