5/4*7/9=

To solve the expression \( \frac{5}{4} \times \frac{7}{9} \), you can multiply the numerators together and the denominators together:

\[ \frac{5 \times 7}{4 \times 9} = \frac{35}{36} \]

Therefore, \( \frac{5}{4} \times \frac{7}{9} = \frac{35}{36} \).