Question

calcular a operação com números racionais:
(2/6-1/5).(3/4+8/5)=​

Answer 1

Resposta:

2/6 - 1/5 = (5*2 - 6*1)/30 = 4/30 = 2/15

3/4 + 8/5 = (5*3 + 4*8)/20 = 47/20

Logo, (2/15).(47/20) = 94/300 = 47/150

Answer 2

Resposta:

$\frac{47}{150}$

Explicação passo-a-passo:

$( \frac{2}{6} - \frac{1}{5} ).( \frac{3}{4} + \frac{8}{5} ) = \frac{10 - 6}{30} . \frac{15 + 32}{20} = \frac{4}{30} . \frac{47}{20} = \frac{188}{600} = \frac{94}{300} = \frac{47}{150}$