Add and simplify.
-$\begin{array} { r }
7 \frac { 1 } { 2 } \\
+ 6 \frac { 2 } { 7 }
\end{array}$
A)14 $14 \frac { 11 } { 14 }$
B) $7 \frac { 11 } { 14 }$
C) $13 \frac { 11 } { 14 }$
D) $12 \frac { 11 } { 14 }$

Question

Add and simplify.
-$\begin{array} { r } 
7 \frac { 1 } { 2 } \\
+ 6 \frac { 2 } { 7 }
\end{array}$
A)14 $14 \frac { 11 } { 14 }$
B) $7 \frac { 11 } { 14 }$
C) $13 \frac { 11 } { 14 }$
D) $12 \frac { 11 } { 14 }$

Quizplus · Accepted Answer

First, convert the mixed numbers to improper fractions: $7 \frac{1}{2} = \frac{15}{2}$ and $6 \frac{2}{7} = \frac{44}{7}$. Find a common denominator, which is 14, and convert: $\frac{15}{2} = \frac{105}{14}$ and $\frac{44}{7} = \frac{88}{14}$. Add them together: $\frac{105}{14} + \frac{88}{14} = \frac{193}{14}$. Convert back to a mixed number: $13 \frac{11}{14}$.

Add and Simplify 712+627\begin{array} { r } 7 \frac { 1 } { 2 } \\\\+ 6 \frac { 2 } { 7 }\end{array}721​+672​​

Add and Simplify $\begin{array} { r } 7 \frac { 1 } { 2 } \\\\+ 6 \frac { 2 } { 7 }\end{array}$