Question

(1/5-1/2)-(1/3-1/4)×2/5​

Answer 1

Resposta:

$(\frac{1}{5} -\frac{1}{2} )-(\frac{1}{3} -\frac{1}{4} )*\frac{2}{5} =\\ \\ \\ (\frac{2-1}{10} )-(\frac{4-3}{12} )*\frac{2}{5} =\\ \\ \\ \frac{1}{10} -\frac{1}{12} *\frac{2}{5} =\\ \\ \\ \frac{1}{10} -\frac{2}{60} =\\ \\ \\ \frac{6-2}{60} =\frac{4}{60} =\frac{1}{15} \\ \\ \\ resposta:\\ \\ \frac{1}{15}$