[tex]\dfrac{8}{9}=\\\\\dfrac{8\cdot2}{9\cdot2}=\dfrac{16}{18}\\\\\\\\\dfrac{8\cdot3}{9\cdot3}=\dfrac{24}{27}\\\\\\\\\dfrac{8\cdot4}{9\cdot4}=\dfrac{32}{36}\\\\\\\\\dfrac{8\cdot5}{9\cdot5}=\dfrac{40}{45}\\\\\vdots\\\\\dfrac{8\cdot10}{9\cdot10}=\dfrac{80}{90}\\\\\vdots[/tex]
