Question

resolva as expressoes numericas (2/3)^2 + (6/5)^-1 * (1/2)^-3

Answer 1

(2/3)² + (6/5)¹ × (1/2)³
(4/9) + (6/5) × (1/8)
4/9 +6/40                 mmc(9 ; 40) = 360
[160 + 54]/360
[214]/360        simplificando 214 e 360 por 2
107/180