Question

5/6 + 1/9-1/3+1/2:::::::;

Answer 1

5/6+1/9-1/3+1/2= (tira o mmc, deu 18)
15/18+2/18-6/18+9/18= (corta o 18)
15+2-6+9=
20

Espero ter ajudado :D