Odpowiedź:
1.
[tex]5 \frac{6}{20} = 5 \frac{30}{100} = 5.3[/tex]
2.
[tex]( { \frac{2}{3} })^{2} \times 3 - \frac{1}{2} \times \frac{1}{5} = \frac{4}{9} \times 3 - \frac{1}{10} = \frac{4}{3} - \frac{1}{10} = \frac{40}{30} - \frac{3}{30} = \frac{37}{30} = 1 \frac{7}{30} [/tex]
[tex] \frac{1}{6} \times 4 + \frac{2}{3} \div \frac{3}{2} = \frac{4}{6} + \frac{2}{3} \times \frac{2}{3} = \frac{4}{6} + \frac{4}{9} = \frac{12}{18} + \frac{8}{18} = \frac{20}{18} = 1 \frac{1}{9} [/tex]
