Question

[Phạm Chinh Offcial]

(\(\frac{2}{5}\)+\(\frac{2}{7}\)-\(\frac{2}{11}\)) : (\(\frac{3}{7}\)-\(\frac{3}{11}\)+\(\frac{3}{5}\))

Answer 1

[%Hz@]

\(\frac{\frac{2}{5}+\frac{2}{7}-\frac{2}{11}}{\frac{3}{7}-\frac{3}{11}+\frac{3}{5}}\)\(=\frac{2\left(\frac{1}{5}+\frac{1}{7}-\frac{1}{11}\right)}{3\left(\frac{1}{7}-\frac{1}{11}+\frac{1}{5}\right)}\)\(=\frac{2\left(\frac{1}{5}+\frac{1}{7}-\frac{1}{11}\right)}{3\left(\frac{1}{5}+\frac{1}{7}-\frac{1}{11}\right)}\)\(=\frac{2}{3}\)