Question

calculati : ( 7/9+17/6 ) - ( 5/6-1/18 )

Answer 1

$(^{2)}\frac79+^{3)}\frac{17}{6})-(^{3)}\frac56-\frac{1}{18})= \\ \\ (\frac{14}{18}+\frac{51}{18})-(\frac{15}{18}-\frac{1}{18})= \\ \\ (\frac{14+51}{18})-(\frac{15-1}{18})= \\ \\ \frac{65}{18}-\frac{14}{18}=\boxed{\frac{51}{18}}$