Question 301145
(1)/(9)-(1)/(3)+(1)/(2)
-(1)/(3)*(6)/(6)+(1)/(2)*(9)/(9)+(1)/(9)*(2)/(2)
-(6)/(18)+(9)/(18)+(2)/(18)
(-6+9+2)/(18)

(5)/(18)  answer