Question

1) Resolva as seguintes equações


a) 3/5 + 2/5

b) 7/3 - 2/3

c) 8/7 - 2/3

d) 8/3 + 5/7

e) 8/4 . 2/3

f) 12/5 . 1/5

Answer 1

Resposta:

A) 3/5 + 2/5

(3 + 2)/5

5/5

1

B) 7/3 - 2/3

(7 - 2)/3

5/3

C) 8/7 - 2/3

(24 - 14)/21

10/21

D) 8/3 + 5/7

(56 + 15)/21

71/21

E) 8/4 × 2/3

2/1 × 2/3

2 × 2/3

4/3

F) 12/5 × 1/5

(12 × 1)/(5 × 5)

12/25

Espero Ter Ajudado !!

Answer 2

Olá....

Resolução:

a)

3/5 + 2/5  = mmc = 5

3 + 2/5

5/5

1

b)

7/3 - 2/3  = mmc =3

7 - 2/3

5/3

c)

8/7 - 2/3  = mmc de 7, 3 = 21

24 - 14/21

10/21

d)

8/3 + 5/7 = mmc de 3, 7

56 + 15/21

71/21

e)

8/4 × 2/3

2 × 2/3

4/3

f)

12/5 × 1/5

12/25

Espero ter ajudado.