Question

Gente por favor pra hj vcs podem mandar a conta toda montada

A)(-2/3 ao quadrado)+(-2/3)+(-2/3)0
B)(2-1/4)-(3-1/2)
C)(3/4-5/6):(1/2+1/4)
D)(-1+1/2)×(-2-3/4)

Answer 1

A) (-2/3)² + (-2/3) + (-2/3)º =

4/9 - 2/3 - 1 = ¨¨¨¨¨¨¨¨¨¨mmc(3,9) = 9

4/9 - 6/9 - 9/9 = - 11/9

B) (2-1/4) - (3-1/2) =

7/4 - 5/2 = ¨¨¨¨¨¨¨mmc(2,4) = 4

7/4 - 10/4 = - 3/4

C) (3/4 - 5/6) : (1/2+1/4) =

(9/12 - 10/12) : (2/4 + 1/4) =

- 1/12 : 3/4 = - 1/12 . 4/3 = - 4/36 = - 1/9

D) (-1 + 1/2) × (-2 -3/4) =

- 1/2 ˣ (- 11/4) = 11/8