Question

Calcule o valor das expressões:
A)4.(2/9)+(-5/3):(2/9)=




B)5.(3/4)-3/4:(-3/8)=

Answer 1

Resposta:

Explicação passo-a-passo:

A) 4.(2/9) + (-5/3) : (2/9) =

    8/9 + (-5/3) x (9/2) =

8/9 + (-5.9/3.2) =

8/9 + (-5.3/2) =

8/9 -45/6 =      MDC(9,6) = 3.3.2 = 18

(8.2/9.2) - (45.3/6.3) =

16/18 - 135/18 =

- 119/18.

B) 5.(3/4) - (3/4):(-3/8) =

(5.3/4) - (3/4)x(-8/3) =

(15/4) - (1/4)x(-8) =

(15/4) - (-8/4) =

(15/4) + (8/4) =

23/4.