Question

Calcule o valor das expressões numéricas:

a) 7/6 - [3/2 - ( 1- 3/4)] =
b) [( 1/2 + 1/3) + 1/4 - ( 1 - 5/8)] + 2/3 =

Answer 1

a) = 7/6 - [3/2 - 1/4] = 7/6 - 5/4 = -1/12
b) = [ 5/6 + 1/4 - 3/8] + 2/3 = 17/24 + 2/3 = 11/8