Ф) \(\frac{18}{20} = \frac{9}{10}\)
X) \(\frac{17}{51} = \frac{1}{3}\)
Ц) \(\frac{20}{118} = \frac{10}{59}\)
Ч) \(\frac{236}{444} = \frac{59}{111}\)
Ш) \(\frac{68}{102} = \frac{2}{3}\)
Щ) \(\frac{128}{28} = \frac{32}{7}\)
Ъ) \(\frac{108}{72} = \frac{3}{2}\)