Resposta :
Resposta:
( a . 2 b) + ( 1 a - 1 b) =
3 2 5
2 ab + 1 a - 1 b = ( tire o mmc)
3 2 5
20 ab + 15 a - 6b =
30
20ab + 15a - 6b
Resposta:
( a . 2 b) + ( 1 a - 1 b) =
3 2 5
2 ab + 1 a - 1 b = ( tire o mmc)
3 2 5
20 ab + 15 a - 6b =
30
20ab + 15a - 6b