[tex]15\% = 0.15[/tex]
Zatem
[tex]0.15 \times 45 = \frac{15}{100} \times \frac{45}{1} = \frac{15}{20} \times \frac{9}{1} = \frac{135}{20} = 6 \frac{15}{20} = 6 \frac{3}{4} = \boxed{ 6.75}[/tex]
