What is 7 over 9 divided by 8 over 15?

In order to solve 7/9 divided by 8/15, you must multiply by the reciprocal. In other Words, 7/9 divided by 8/15 becomes 7/9 multiplied by 15/8. After this, you can cross cancel if there are common factors. 9 and 15 have a common factor of 3, so you can divide each by 3. The problem then becomes 7/3 multiplied by 5/8. You then multiply across the top and the bottom. Your final answer then is 35/24.