Explicație pas cu pas:
a)
[tex]\frac{17}{5} = \frac{3 \cdot 5 + 2}{5} = \bf 3 \frac{2}{5} \\ [/tex]
b)
[tex]\frac{37}{7} = \frac{5 \cdot 7 + 2}{7} = \bf 5 \frac{2}{7} \\ [/tex]
c)
[tex]\frac{3n + 1}{n} = \frac{3n}{n} + \frac{1}{n} = 3 + \frac{1}{n} = \bf 3\frac{1}{n} \\ [/tex]
d)
[tex]\frac{5n + 7}{n + 1} = \frac{5n + 5 + 2}{n + 1} = \frac{5(n + 1) + 2}{n + 1} = \\ = \frac{5(n + 1)}{n + 1} + \frac{2}{n + 1} = 5 + \frac{2}{n + 1} = \bf 5\frac{2}{n + 1}[/tex]
