Question

Considere x=1/20 e y=1/30 e calcule a soma x -1 + y -1

Answer 1

Resposta:

-23/12

Explicação passo-a-passo:

1/20 - 1 + 1/30-1

1-20/20 + 1-30/30

-19/20 + (-29/30)

-19/20 - 29/30

-57-58/60

-115/60 =  -23/12