Tính: phép tính

a) \(\frac{6}{{17}} - \frac{3}{{17}}\)

= \(\frac{3}{{17}}\)

b) \(\frac{{11}}{9} - \frac{1}{3}\)

= \(\frac{{11}}{9} - \frac{3}{9}\) = \(\frac{8}{9}\)

c) \(\frac{{99}}{{101}} - \frac{{36}}{{101}}\)

= \(\frac{{63}}{{101}}\)

d) \(\frac{{101}}{{33}} - \frac{4}{{11}}\)

= \(\frac{{101}}{{33}} - \frac{{12}}{{33}}\) = \(\frac{{89}}{{33}}\)