Question

Please give me the answer ​

Answer 1

Answer:

$( \frac{1}{5} + \frac{1}{9} ) ^{ - 1} \div \frac{1}{5} - \frac{1}{9} ) ^{ - 1} \\ ( \frac{14}{ 45})^{ - 1} \div ( \frac{4}{45} )^{ - 1} \\ ( \frac{14}{45} \div \frac{4}{45} ) ^{ - 1} \\ ( \frac{14}{45} \times \frac{45}{4} ) ^{ - 1} \\ (7 \times \frac{1}{2} ) ^{ - 1} \\ ( \frac{7}{2} ) ^{ - 1} = \frac{2}{7}$

hope it helps (if possible please mark me brainest)