Răspuns:
[tex]2 \frac{7}{9} = \frac{2 \times 9 + 7}{9} = \frac{25}{9} [/tex]
[tex]4 \frac{3}{10} = \frac{4 \times 10 + 3}{10} = \frac{43}{10} [/tex]
[tex]10 \frac{9}{25} = \frac{10 \times 25 + 9}{25} = \frac{259}{25} [/tex]
[tex]2 \frac{1}{n + 2} = \frac{2n + 4 + 1}{n + 2} = \frac{2n + 5}{n + 2} [/tex]
[tex] \frac{70}{10} = 7[/tex]
[tex] \frac{164}{25} = 6 \frac{14}{25} [/tex]
[tex] \frac{233}{233} = 1[/tex]
