Question

Pfvr mandem cálculos detalhados , obrigado

Answer 1

Resposta:

a=3+1/2-2-3/4 =1 -1/4=3/4

b=2/3+1/6=4/6+1/6=5/6

a/b= (3/4)/(5/6)

=(3/4)*(6/5)=18/20=9/10

Letra B