Cześć ;-)
Obliczenia
[tex]\dfrac{3,3-1,7}{0,4}\cdot\dfrac{\frac{1}{7}+\frac{3}{5}-0,2}{2,4:0,3}=\dfrac{1,6}{0,4}\cdot\dfrac{\frac{1}{7}+\frac{3}{5}-\frac{1}{5}}{2,4:0,3}=\\\\\\=\dfrac{16}{4}\cdot\dfrac{\frac{1}{7}+\frac{2}{5}}{24:3}=4\cdot\dfrac{\frac{5}{35}+\frac{14}{35}}{8}=\dfrac{\frac{19}{35}}{2}=\dfrac{19}{35}\cdot\dfrac{1}{2}=\boxed{\frac{19}{70}}[/tex]
Pozdrawiam!
