Question

9/8 + 8/9 x [1-(3/4+ 1/2)]³=

Answer 1

$\frac{9}{8}+\frac{8}{9}.\left [1-(\frac{3}{4}+\frac{1}{2}) \right ]= \\ \\ \frac{9}{8}+\frac{8}{9}.\left [1-\frac{5}{4 \right ]}= \\ \\ \frac{9}{8}+\frac{8}{9}.(-\frac{1}{4})= \\ \\ \frac{9}{8}-\frac{2}{9} = \\ \\ \frac{81-16}{72}=\frac{65}{72}$