[tex] \frac{4}{5} \times \frac{4}{5} \times \frac{4}{5} \times \frac{4}{5} [/tex]
[tex] \frac{2}{7} \times \frac{2}{7} \times \frac{2}{7} \times \frac{2}{7} [/tex]
[tex]1 \times \frac{2}{3} \times 1\frac{2}{3} \times \times 1\frac{2}{3} \times \times 1\frac{2}{3} [/tex]