Question

O valor de expressão 1+(1_5+1_3)é: a)2 b)9_10 c)15_9 e) 1

Answer 1

Resposta:

2

Explicação passo-a-passo:

1 + (1/5 + 1/3) / (1/3 - 1/15) =

1 + (3/15 + 5/15 / (3/5 - 1/15)

1 + (3+5)/15 / (3/5 - 1/15)

1 + (8/15)/ (3/5 - 1/15)

1 + (8/18=5) / (9-1/15)

1 + (8/15) / (8/15)

1 + 1 = 2