[tex]\it \dfrac{15}{100}\ din\ 4500 =\dfrac{15}{100}\cdot4500=15\cdot45=675[/tex]
[tex]\bf \dfrac{15}{100}\cdot 4500=[/tex]
[tex]\bf \dfrac{15}{\not100}\cdot 45\not00=[/tex]
[tex]\bf 15\cdot 45=[/tex]
[tex]\boxed{\bf 675}[/tex]
