Odpowiedź:
a.
[tex] \frac{2.75 + 1}{1.25} = \frac{3.75}{1.25} = 3[/tex]
b.
[tex] \frac{1 \frac{4}{10} }{(2 \frac{4}{6} - \frac{3}{6}) \times 6 } = \frac{ \frac{14}{10} }{2 \frac{1}{6} \times 6} = \frac{7}{5} \div 13 = \frac{7}{5} \times \frac{1}{13} = \frac{7}{65} [/tex]
c.
[tex] \frac{ \frac{2}{3} }{ \frac{2}{10} - \frac{1}{10} } = \frac{2}{3} \div \frac{1}{10} = \frac{2}{3} \times \frac{10}{1} = \frac{20}{3} = 6 \frac{2}{3} [/tex]
