\(\dfrac{205}{505}\) = \(\dfrac{205:5}{505:5}\) = \(\dfrac{41}{101}\)
\(\dfrac{1111}{1313}\) = \(\dfrac{1111:101}{1313:101}\) = \(\dfrac{11}{13}\)
\(\dfrac{1133}{1442}\) = \(\dfrac{1133:103}{1442:103}\) = \(\dfrac{11}{14}\)
\(\dfrac{2\times3\times4\times5}{3\times4\times5\times7}\) = \(\dfrac{3\times4\times5}{3\times4\times5}\) \(\times\) \(\dfrac{2}{7}\) = \(\dfrac{2}{7}\)