Odpowiedź:
a) 109,7
b) [tex]= \frac{16}{5} - 1\frac{8}{10} = \frac{16}{5} - \frac{18}{10} = \frac{16}{5} - \frac{9}{5} = \frac{7}{5} = 1\frac{2}{5}[/tex]
c) [tex]1\frac{3}{4} + 2\frac{2}{3} = \frac{7}{4} + \frac{8}{3} = \frac{21}{12} + \frac{32}{12} = \frac{53}{12} = 4\frac{5}{12}[/tex]
d) [tex]1\frac{2}{7} + 1,4 = \frac{9}{7} + \frac{7}{5} = \frac{9}{5} = 1\frac{4}{5}[/tex]
e) [tex]\frac{27}{10} : \frac{15}{4} = \frac{27}{10} * \frac{4}{15} = \frac{9}{5} * \frac{2}{5} = \frac{18}{25}[/tex]
f) [tex]0,3*0,3*0,3 = 0,027[/tex]
