Question

(1/2-4/5):(1-1/4)= me ajudem qual a resposta

Answer 1

$( \frac{1}{2} - \frac{4}{5} ) \div (1 - \frac{1}{4} ) = \\ = ( \frac{5 - 8}{10} ) \div ( \frac{4 - 1}{4} ) = \\ = \frac{ - 3 }{10} \div \frac{3}{4} = - \frac{3}{10} \times \frac{4}{3} = \\ = - \frac{4}{10} = - \frac{2}{5}$