Daná racionální čísla zapiš zlomkem v základním tvaru:
\large \Large \frac{450}{750}\large
\large \Large \frac{9:3}{15:3}\large = \Large \frac{2}{5}\large
\large \Large \frac{9:3}{15:3}\large = \Large \frac{3}{4}\large
\large \Large \frac{9:3}{15:3}\large = \Large \frac{3}{5}\large
\large \Large \frac{9:3}{15:3}\large = \Large \frac{5}{6}\large
Tady budeš krátit, co to jen půjde.