a)
[tex]5 \times 4 \frac{2}{5} = 20 \frac{10}{5} = 22[/tex]
b)
[tex]7 \times \frac{4}{5} = \frac{28}{5} = 5 \frac{3}{5} [/tex]
c)
[tex] \frac{15}{21} \times \frac{3}{25} = \frac{3}{7} \times \frac{1}{5} = \frac{3}{35} [/tex]
d)
[tex]1 \frac{3}{4} \times 2 \frac{2}{7} = \frac{7}{4} \times \frac{16}{7} = \frac{1}{1} \times \frac{4}{1} = 4[/tex]
e)
[tex]1 \frac{19}{26} \times \frac{1}{12} = \frac{45}{26} \times \frac{1}{12} = \frac{45}{312} [/tex]
Myślę że pomogłem ;)
