[tex]a) \frac{-4}{9}: \frac{16}{27}= \frac{-4}{9}*\frac{27}{16} =\frac{-3}{4} \\\\\\\\b)\frac{2}{3}: \frac{-12}{5}= \frac{2}{3} *\frac{-5}{12}=- \frac{5}{18} \\\\c)\frac{21}{25}: \frac{-7}{5}= \frac{21}{25} *\frac{-5}{7}= \frac{-3}{5} \\\\d) 3,05: 0,005 = \frac{305}{100}: \frac{5}{1000}= \frac{305}{100}* \frac{1000}{5}= 610\\\\e)-2,25 : -0,015 = \frac{225}{100}: \frac{15}{1000}= \frac{225}{100}* \frac{1000}{15}=150[/tex]
