Tính biểu thức: 5/17 + 11/17 =

\(\frac{5}{{17}}\) + \(\frac{{11}}{{17}}\) = \(\frac{{16}}{{17}}\)

\(\frac{4}{3}\) – \(\frac{5}{{12}}\) = \(\frac{{16}}{{12}}\) – \(\frac{5}{{12}}\) = \[\frac{{11}}{{12}}\]

\(\frac{8}{{15}}\) × \(\frac{3}{{16}}\) = \(\frac{1}{{10}}\)

\(\frac{{11}}{{63}}\) : \(\frac{{33}}{{14}}\) = \(\frac{{11}}{{63}}\) × \(\frac{{14}}{{33}}\) = \(\frac{2}{{27}}\)