Odpowiedź :
Odpowiedź:
b)[tex]9*3\frac{1}{5}=9*\frac{16}{5}=\frac{144}{5}=28\frac{4}{5}[/tex]
c)[tex]4*2\frac{3}{7}=4*\frac{17}{7}=\frac{68}{7}=9\frac{5}{7}[/tex]
d)[tex]5*3\frac{2}{9}=5*\frac{29}{9}=\frac{145}{9}=16\frac{1}{9}[/tex]
Szczegółowe wyjaśnienie:
[tex]b) \: 9 \times 3 \frac{1}{5} = 9 \times \frac{16}{5} = \frac{144}{5} = 28 \frac{4}{5} [/tex]
[tex]c) \: 4 \times 2 \frac{3}{7} = 4 \times \frac{17}{7} = \frac{68}{7} = 9 \frac{5}{7} [/tex]
[tex]d) \: 5 \times 3 \frac{2}{9} = 5 \times \frac{29}{9} = \frac{145}{9} = 16 \frac{1}{9} [/tex]