Odpowiedź:
[tex]a) \: \frac{3}{7} \times ( - 4) = \frac{12}{7} = 1 \frac{5}{7} [/tex]
[tex]b) \: - \frac{4}{5} \div ( - \frac{10}{11} ) = \frac{4}{5} \times ( - \frac{11}{10} ) = \frac{22}{25} [/tex]
[tex]c) \: - \frac{7}{12} \div \frac{6}{14} = \frac{7}{12} \times \frac{19}{6} = - \frac{49}{36} = 1 \frac{13}{36} [/tex]
[tex]d) \: 2 \frac{1}{4} \times ( - \frac{4}{9} ) = \frac{9}{4} \times ( - \frac{4}{9} ) = - 1[/tex]
[tex]e) \: - 3 \div 5 \frac{1}{3} = - 3 \div \frac{16}{3} = - 3 \times \frac{3}{6} = - \frac{9}{16} [/tex]
[tex]f) \: - 2 \frac{1}{5} \times ( - 3 \frac{1}{8} ) = - \frac{11}{5} \times ( - \frac{25}{8} ) = \frac{55}{8} = 6 \frac{7}{8} [/tex]
[tex]g) \: - 3 \frac{1}{8} \div ( - 6 \frac{3}{8} ) = - \frac{25}{8} \div ( - \frac{51}{8} ) = - \frac{25}{8} \times ( - \frac{8}{51} = \frac{25}{51} [/tex]
[tex]h) \: 3.2 \div ( - 8) = - 0.4[/tex]
[tex]i) \: - 1.6 \times ( - 0.2) = 8[/tex]
[tex]j) \: - 1.6 \div 4 = - 0.4[/tex]
[tex]k) \: - 2.2 \times ( - 0.1) = 0.22[/tex]
[tex]l) \: - 5.2 \div ( - 2) = 2.6[/tex]
[tex]m) \: 2.4 \div ( - 0.6) = - 4[/tex]
[tex]n) \: - 2 \div ( - 0.25) = 8[/tex]
Szczegółowe wyjaśnienie:
chyba niczego nie pominęłam
LICZE NA NAJJ
