Question

simplificando a expressão [1+(1/5 – 2) : 3] : (2/3 -1), temos resposta.

Answer 1

[1+(1/5 – 2) : 3] : (2/3 -1) | [1+(1/5/3 – 2/3)] : (2/3 -1) | [1+(1/15– 2/3)] : (2/3 -1) | MMC [15/15 + (1/15 – 10/15 )] : (10/15 - 15/15) | (15 + 1 -10): (10-15) | 6:(-5) = -6/5 ou -1,2