Ответ:\(\frac{18}{20}=\frac{9}{10}\).\(\frac{9}{12}=\frac{3}{4}\).\(\frac{24}{36}=\frac{2}{3}\).\(\frac{36}{45}=\frac{4}{5}\).\(\frac{14}{14}=1\).\(\frac{15}{45}=\frac{1}{3}\).\(\frac{99}{102}=\frac{33}{34}\).\(\frac{225}{300}=\frac{3}{4}\).