Odpowiedź:
a)
[tex]4 \times 2 \frac{3}{5} = 4 \times (2 + \frac{3}{5} ) = 4 \times 2 + 4 \times \frac{3}{5} = 8 + \frac{4 \times 3}{5} = 8 + \frac{12}{5} = 8 + 2 \frac{2}{5} = 10 \frac{2}{5} [/tex]
b)
[tex]7 \times 5 \frac{1}{3} = 7 \times (5 + \frac{1}{3} ) = 7 \times 5 + 7 \times \frac{1}{3 } = 35 + \frac{7}{3} = 35 + 2 \frac{1}{3} = 37 \frac{1}{3} [/tex]
c)
[tex]2 \times 3 \frac{4}{7} = 2 \times \frac{25}{7} = \frac{2 \times 25}{7} = \frac{50}{7} = 7 \frac{1}{7} [/tex]
d)
[tex]6 \times 1 \frac{5}{9} = 6 \times \frac{14}{9} = \frac{6 \times 14}{9} = \frac{84}{9} = 9 \frac{1}{3} [/tex]
