1.

\left. \begin{array} { l } { \text { Solve: } } \\ { \text { (a) } \frac { 1 } { 18 } + \frac { 1 } { 18 } } \end{array} \right.

Answer»

1/18 + 1/18

1+1/18

2/18

1/9

Sol. 1/18+1/18=. 1/9



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