What that looks like is this: [tex] \frac{\frac{3}{4}}{\frac{9}{10}} [/tex]. When we divide fractions by fractions, you bring up the lower fraction and flip it upside down to multiply, so it becomes [tex] \frac{3}{4}*\frac{10}{9} [/tex]. If we multiply straight across the top and straight across the bottom we have [tex] \frac{30}{36} [/tex] which reduces nicely to 5/6. That's your answer.
