Sally Ritchie leaves $\frac { 1 } { 6 }$ of her estate to the Girl Scouts, $\frac { 2 } { 7 }$ to the local college, and the rest to her favorite charity. What fractional part of the estate does the charity receive?

Question

Quizplus · Accepted Answer

To find the fraction of the estate the charity receives, subtract the fractions given to the Girl Scouts and the local college from 1. The common denominator for $\frac{1}{6}$ and $\frac{2}{7}$ is 42. Convert the fractions: $\frac{1}{6} = \frac{7}{42}$ and $\frac{2}{7} = \frac{12}{42}$. Add these: $\frac{7}{42} + \frac{12}{42} = \frac{19}{42}$. Subtract from 1: $1 - \frac{19}{42} = \frac{42}{42} - \frac{19}{42} = \frac{23}{42}$.

Sally Ritchie Leaves 16\frac { 1 } { 6 }61​ Of Her Estate to the Girl Scouts

Sally Ritchie Leaves $\frac { 1 } { 6 }$ Of Her Estate to the Girl Scouts