Question

Resolve para essa expressão [(1/5 +1/3)÷(3/5+1/15)]+0,9...

Answer 1

Resposta:

1,7

Explicação passo-a-passo:

[(1/5 +1/3)÷(3/5+1/15)]+0,9

[(3/15+5/15)/(9/15 + 1/15)]+0,9

[(8/15)/(10/15)]+0.9

8/10+ 0,9

0,8 + 0,9 = 1,7

Answer 2

$[(\frac{1}{5}+\frac{1}{3})\div(\frac{3}{5}+\frac{1}{15})]+0,999....$

$[(\frac{1}{5}+\frac{1}{3})\div(\frac{3}{5}+\frac{1}{15})]+1$

$[(\frac{3+5}{15})\div(\frac{9+1}{15})]+1$

$[\frac{8}{15}\div\frac{10}{15}] +1$

$[\frac{\cancel8}{\cancel15}\times\frac{\cancel15}{\cancel10}]+1$

$\frac{4}{5}+1=\frac{4+5}{5}=\frac{9}{5}$