Add and simplify.
-$\frac { 2 } { 7 } + \frac { 1 } { 9 }$
A) $\frac { 23 } { 63 }$
B) $\frac { 25 } { 63 }$
C) $\frac { 1 } { 21 }$
D) $\frac { 3 } { 16 }$

Question

Quizplus · Accepted Answer

To add the fractions, find a common denominator. The least common multiple of 7 and 9 is 63. Convert each fraction: $\frac{2}{7} = \frac{18}{63}$ and $\frac{1}{9} = \frac{7}{63}$. Add them: $\frac{18}{63} + \frac{7}{63} = \frac{25}{63}$.

Add and Simplify 27+19\frac { 2 } { 7 } + \frac { 1 } { 9 }72​+91​

Add and Simplify $\frac { 2 } { 7 } + \frac { 1 } { 9 }$