Odpowiedź:
a)
[tex]2.4 \times \frac{3}{8} = 2.4 \times 0.375 = 0.9 \\ 2 \frac{2}{5} \times \frac{3}{8} = \frac{12}{5} \times \frac{3}{8} = \frac{9}{10} [/tex]
b)
[tex]2.75 \div 1.75 = \frac{11}{7} = 1 \frac{4}{7} \\ 2 \frac{3}{4} \div 1 \frac{3}{4} = \frac{11}{4} \times \frac{4}{7} = \frac{11}{7} = 1 \frac{4}{7} [/tex]
