⁹⁾5/2 - ²⁾5/9 =
= (45 - 10)/18
= 35/18
[tex] \frac{5}{2} - \frac{5}{9} = \frac{5 \times 9}{2 \times 9} - \frac{5 \times 2}{9 \times 2} = \frac{45}{18} - \frac{10}{18} = \frac{45 - 10}{18} = \frac{35}{18} = 1 \frac{17}{18} [/tex]
