Viết các phân số sau thành phân số thập phân:

\(\frac{{11}}{5}\) = \(\frac{{11\,\, \times \,\,2}}{{5\,\, \times \,\,2}}\,\, = \,\,\frac{{22}}{{10}}\)

 \(\frac{{75}}{{200}}\) = \(\frac{{75\,\, \times \,\,5}}{{200\,\, \times \,\,5}}\,\, = \,\,\frac{{375}}{{1\,\,000}}\)

\(\frac{9}{{500}}\) = \(\frac{{9\,\, \times \,\,2}}{{500\,\, \times \,\,2}}\,\, = \,\,\frac{{18}}{{1\,\,000}}\)

\(\frac{{215}}{{250}}\) = \(\frac{{215\,\, \times \,\,4}}{{250\,\, \times \,\,4}}\,\, = \,\,\frac{{860}}{{1\,\,000}}\)