Resposta:
2/9÷2/9+15/12=
2/9×9/2+15/12=
18/18+15/12=
36/36+45/36=81/36==÷3==27/12
Mmc =36
18,12=2
9, 6= 2
9,3=3
3,1=3
1,1
Esperoter ajudado
