Question

Efetue as operações entre números racionais a 4/6+3/6
B 8/3-5/7
C 13,45+0,3
D 46,89-34,9

Answer 1

Resposta:

A)7/6

B)41/21

C)13,75

D)11,99

Explicação passo-a-passo:

A)4/6 + 3/6

4/6 + 3/6

4+3/6

7/6

Resposta

7/6

B)8/3 - 5/7

8/3 - 5/7

8×7/3×7 - 5/7

8/3 - 5/7

8×7/3×7 - 5×3/7×3

56/3×7 - 5×3/7×3

8×7/3×7 - 5×3/7×3

56/21 - 5×3/7×3

8×7/ 3×7 - 5×3/7×3

56/21 15/7×3

8×7/3×7 - 5×3/7×3

56/21 - 15/21

56-15/21

8/3 - 5/7

56-15/21 41/21

Resposta

41/21

C)13,45+0,3

13,45+0,3

13,75

Resposta

13,75

D)46,89-34,9

46,89-34,9

11,99

Resposta

11,99