👤

[1 supra 3 + 1 supra 3 :(1-1 supra 3)]: 3 supra 2
Vă rog


Răspuns :

[1 supra 3 + 1 supra 3 :(1-1 supra 3)]: 3 supra 2=

=[1/3 +(1/3):(1- 1/3)]:(3/2)=

=[1/3 +(1/3):(2/3)]x(2/3)=

=[1/3 +(1/3)x(3/2)]x(2/3)=

=[1/3 +1/2]x(2/3)=

=(2/6 +3/6)x(2/3)=

=(5/6)x(2/3)=10/18=5/9