Question

Me ajudem please!!!!

Answer 1

Explicação passo-a-passo:

$1 + ( \frac{1}{5} + \frac{1}{3} ) \div ( \frac{3}{5} - \frac{1}{5} ) = 1 +\frac{ ( \frac{1}{5} + \frac{1}{3}) }{ \frac{3}{5} - \frac{1}{5}} = \\ 1 + \frac{( \frac{3 + 5}{15}) }{ \frac{15 - 5}{25} } = 1 +\frac{ ( \frac{8}{15}) }{ \frac{10}{25} } = \\ \\ 1 +\frac{8}{15} . \frac{25}{10} = 1 +\frac{8}{15} . \frac{5}{2} = 1 + \frac{4}{15} .5 = 1+ \frac{4}{3} = \\ \frac{3+4}{3} = \frac{7}{3}$