[tex]\dfrac{1}{9}+\dfrac{2}{3}+\dfrac{5}{18}\\\\list\ the\ multiples\ of\\9:0;\ 9;\ \boxed{18};\ 27;...\\3:0;\ 3;\ 6;\ 9;\ 12;\ 15;\ \boxed{18};\ 21;...\\18:0;\ \boxed{18};\ 36;...\\\\Least\ Common\ Denominator\\LCD(9;\ 3;\ 18)=18\\\\\dfrac{1}{9}=\dfrac{1\cdot2}{9\cdot2}=\dfrac{2}{18};\ \dfrac{2}{3}=\dfrac{2\cdot6}{3\cdot6}=\dfrac{12}{18}\\\\therefore\\\\\dfrac{1}{9}+\dfrac{2}{3}+\dfrac{5}{18}=\dfrac{2}{18}+\dfrac{12}{18}+\dfrac{5}{18}=\dfrac{19}{18}=1\dfrac{1}{18} [/tex]
