Obliczenia :
[tex]\dfrac{90^8}{36^3\cdot15^8}=\dfrac{90^8}{(6^2)^3\cdot15^8}=\dfrac{6^8\cdot15^8}{6^6\cdot15^8}=\\\\\\=\dfrac{6^8}{6^6}\cdot\dfrac{15^8}{15^8}=6^{8-6}\cdot1=6^2\cdot1=\huge\boxed{36}[/tex]
