me ajuda pfvvvvvvvvvvv
![Me Ajuda Pfvvvvvvvvvvv class=](https://pt-static.z-dn.net/files/d72/1257e05fa5ecd21c8218793ce89abe23.jpg)
(1/2) - (-2/3)
(-) . (-) = (+) jogo de sinais
1/2 + 2/3
7/6