Cześć!
Szczegółowe wyjaśnienie:
a)
[tex]1 \frac{4}{5} \cdot0.25 = \frac{9}{5} \cdot \frac{1}{4} = \frac{9}{20} \\ [/tex]
b)
[tex]1.1 \cdot \frac{5}{6} = \frac{1}{10} \cdot \frac{5}{6} = \frac{11}{2} \cdot \frac{1}{6} = \frac{11}{12} [/tex]
c)
[tex]3 \frac{1}{8} : 0.25 = \frac{25}{8} : \frac{1}{4} = \frac{25}{8} \cdot4 = \frac{25}{2} = 12 \frac{1}{2} [/tex]
d)
[tex]0.25 + \frac{5}{8} = \frac{1}{4} + \frac{5}{8} = \frac{7}{8} [/tex]
