Răspuns:
Explicație pas cu pas:
[tex]3\frac{4}{7} x \frac{2}{5} = \frac{3x7+4}{7} x\frac{2}{5} = \frac{21+4}{7} x \frac{2}{5} = \frac{25}{7} x \frac{2}{5}=\frac{5}{7} x2=\frac{10}{7}[/tex]
3 4/7×2/5=25/7×2/5=(25×2)(7×5)=50/35=50÷35=1 intreg 15/35
Sper ca te am ajutat;)
