Answer :

7/12 times 5/9 equals 35/108. It is automatically in simplest form.
[tex] \frac{7}{12} / \frac{5}{9} = [/tex]

Change the division to multiplication through the reciprocal of the number being divided. 

[tex] \frac{7}{5} * \frac{9}{5} = \frac{21}{20} [/tex]

As mixed number:

[tex]1 \frac{1}{20} [/tex]