Răspuns:
Explicație pas cu pas:
[tex]1\frac{2}{5} = \frac{7}{5}[/tex]
[tex]4\frac{1}{7} = \frac{29}{7}[/tex]
[tex]3\frac{1}{14} = \frac{43}{14}[/tex]
=> [tex]\frac{7}{5} * (\frac{29}{7} - \frac{43}{14})[/tex]
amplificam 29/7 cu 2
=> [tex]\frac{7}{5} * \frac{58-43}{14} = \frac{7}{5} * \frac{15}{14} = \frac{105}{70}\\[/tex]
= [tex]\frac{3}{2}[/tex]
