Question

Calcule o valor de cada uma das expressões​

Answer 1

Resposta:

a]

(2/9) - (4/3) + (2/5) - 2

- (10/9) + (2/5) - 2

- (32/45) - 2 = [- 122/45]

b]

(2/5) - (1/3) + (3/5) - (2/3)

(5/5) - (3/3) = [0]

c]

(1/2) * (3/5) * (9/4) - 1/4

[(45/60)/15] - 1/4

(3/4) - (1/4) = [1/2]

Explicação passo-a-passo: