Odpowiedź:
a) (-4,6) + 2,2 = -2,4
b) (-3,2) - 2,7 = -5,9
[tex]c) \: ( - 4 \frac{4}{5} ) \times 3 \frac{1}{3} = ( - \frac{24}{5} ) \times \frac{10}{3} = ( - \frac{8}{1} ) \times \frac{2}{1} = - \frac{16}{1} = - 16[/tex]
[tex]d) \: ( - 2 \frac{1}{7} ) \div ( - 3 \frac{3}{14} ) = ( - \frac{15}{7} ) \div ( - \frac{45}{14} ) = ( - \frac{15}{7} ) \times ( - \frac{14}{45} ) = ( - \frac{1}{1} ) \times ( - \frac{2}{3} ) = \frac{2}{3} [/tex]
Pozdrawiam.