Question

Calcule o valor da expressão:
a)2/5×(3/4+5/8)
b)1/2÷(2/3+3/4)
c)(1/3+1/2)÷5/6
d)1/2×(2/3+3/4
e)(5/7×2/3)÷1/6

Answer 1

Resposta:

Explicação passo a passo:

2/5x(3/4+5/8)=

2/5x(6/8+5/8)=

2/5x11/8=

22/40= [simplifica por 2]

11/20

1/2:(2/3+3/4)=

1/2:(8/12+9/12)=

1/2:(17/12)=

1/2.12/17=

12/34= [ simplifica por 2]

6/17

(1/3+1/2):5/6=

(2/6+3/6):5/6=

5/6:5/6=

5/6.6/5=

30/30=

1

1/2x(2/3+3/4)=

1/2x(8/12+9/12)=

1/2x17/12=

17/24

(5/7x2/3):1/6=

10/27:1/6=

10/27.6/1=

60/27= [ simplifica por 3]

20/9