đó là
81/9=243/27 27/3=81/9 9/81=243/27 3/9=81/243 3/27=9/81 9/7=81/243 3/81=9/243 243/9=81/3
3/9=27/81 27/9=243/81 9/3=81/27 9/3=243/81 243/9=81/3 81/9=27/3
Có thể và tỉ lệ thức đó là:
\(\frac{3}{9}=\frac{81}{243}\) \(\frac{9}{27}=\frac{81}{243}\) \(\frac{3}{27}=\frac{9}{81}\)
\(\frac{3}{81}=\frac{9}{243}\) \(\frac{9}{81}=\frac{27}{243}\) \(\frac{3}{9}=\frac{27}{81}\)
\(\frac{9}{3}=\frac{243}{81}\) \(\frac{27}{9}=\frac{243}{81}\) \(\frac{9}{3}=\frac{81}{27}\)
\(\frac{243}{9}=\frac{81}{3}\) \(\frac{81}{9}=\frac{243}{27}\) \(\frac{81}{9}=\frac{27}{3}\)