Question

The sum of two numbers is \[\frac{- 1}{3} .\]  If one of the numbers is \[\frac{- 12}{3},\] find the other.

Answer 1

\[\text{It is given that the sum of two numbers is} \frac{- 1}{3}, \text{where one of the numbers is} \frac{- 12}{3} . \]
\[\text{Let the other number be x .} \]
\[ \therefore x + \frac{- 12}{3} = \frac{- 1}{3}\]
\[ \Rightarrow x = \frac{- 1}{3} - \frac{- 12}{3}\]
\[ \Rightarrow x = \frac{- 1 - ( - 12)}{3} = \frac{- 1 + 12}{3} = \frac{11}{3}\]