Evaluate
\frac{4\left(v+2\right)}{7\left(v+7\right)}
Expand
\frac{4\left(v+2\right)}{7\left(v+7\right)}
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\frac{\frac{2\left(v-5\right)}{\left(v-5\right)\left(v+9\right)}+\frac{2\left(v+9\right)}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of v+9 and v-5 is \left(v-5\right)\left(v+9\right). Multiply \frac{2}{v+9} times \frac{v-5}{v-5}. Multiply \frac{2}{v-5} times \frac{v+9}{v+9}.
\frac{\frac{2\left(v-5\right)+2\left(v+9\right)}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
Since \frac{2\left(v-5\right)}{\left(v-5\right)\left(v+9\right)} and \frac{2\left(v+9\right)}{\left(v-5\right)\left(v+9\right)} have the same denominator, add them by adding their numerators.
\frac{\frac{2v-10+2v+18}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
Do the multiplications in 2\left(v-5\right)+2\left(v+9\right).
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
Combine like terms in 2v-10+2v+18.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6\left(v+9\right)}{\left(v-5\right)\left(v+9\right)}+\frac{v-5}{\left(v-5\right)\left(v+9\right)}}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of v-5 and v+9 is \left(v-5\right)\left(v+9\right). Multiply \frac{6}{v-5} times \frac{v+9}{v+9}. Multiply \frac{1}{v+9} times \frac{v-5}{v-5}.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6\left(v+9\right)+v-5}{\left(v-5\right)\left(v+9\right)}}
Since \frac{6\left(v+9\right)}{\left(v-5\right)\left(v+9\right)} and \frac{v-5}{\left(v-5\right)\left(v+9\right)} have the same denominator, add them by adding their numerators.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6v+54+v-5}{\left(v-5\right)\left(v+9\right)}}
Do the multiplications in 6\left(v+9\right)+v-5.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{7v+49}{\left(v-5\right)\left(v+9\right)}}
Combine like terms in 6v+54+v-5.
\frac{\left(4v+8\right)\left(v-5\right)\left(v+9\right)}{\left(v-5\right)\left(v+9\right)\left(7v+49\right)}
Divide \frac{4v+8}{\left(v-5\right)\left(v+9\right)} by \frac{7v+49}{\left(v-5\right)\left(v+9\right)} by multiplying \frac{4v+8}{\left(v-5\right)\left(v+9\right)} by the reciprocal of \frac{7v+49}{\left(v-5\right)\left(v+9\right)}.
\frac{4v+8}{7v+49}
Cancel out \left(v-5\right)\left(v+9\right) in both numerator and denominator.
\frac{\frac{2\left(v-5\right)}{\left(v-5\right)\left(v+9\right)}+\frac{2\left(v+9\right)}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of v+9 and v-5 is \left(v-5\right)\left(v+9\right). Multiply \frac{2}{v+9} times \frac{v-5}{v-5}. Multiply \frac{2}{v-5} times \frac{v+9}{v+9}.
\frac{\frac{2\left(v-5\right)+2\left(v+9\right)}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
Since \frac{2\left(v-5\right)}{\left(v-5\right)\left(v+9\right)} and \frac{2\left(v+9\right)}{\left(v-5\right)\left(v+9\right)} have the same denominator, add them by adding their numerators.
\frac{\frac{2v-10+2v+18}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
Do the multiplications in 2\left(v-5\right)+2\left(v+9\right).
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6}{v-5}+\frac{1}{v+9}}
Combine like terms in 2v-10+2v+18.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6\left(v+9\right)}{\left(v-5\right)\left(v+9\right)}+\frac{v-5}{\left(v-5\right)\left(v+9\right)}}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of v-5 and v+9 is \left(v-5\right)\left(v+9\right). Multiply \frac{6}{v-5} times \frac{v+9}{v+9}. Multiply \frac{1}{v+9} times \frac{v-5}{v-5}.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6\left(v+9\right)+v-5}{\left(v-5\right)\left(v+9\right)}}
Since \frac{6\left(v+9\right)}{\left(v-5\right)\left(v+9\right)} and \frac{v-5}{\left(v-5\right)\left(v+9\right)} have the same denominator, add them by adding their numerators.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{6v+54+v-5}{\left(v-5\right)\left(v+9\right)}}
Do the multiplications in 6\left(v+9\right)+v-5.
\frac{\frac{4v+8}{\left(v-5\right)\left(v+9\right)}}{\frac{7v+49}{\left(v-5\right)\left(v+9\right)}}
Combine like terms in 6v+54+v-5.
\frac{\left(4v+8\right)\left(v-5\right)\left(v+9\right)}{\left(v-5\right)\left(v+9\right)\left(7v+49\right)}
Divide \frac{4v+8}{\left(v-5\right)\left(v+9\right)} by \frac{7v+49}{\left(v-5\right)\left(v+9\right)} by multiplying \frac{4v+8}{\left(v-5\right)\left(v+9\right)} by the reciprocal of \frac{7v+49}{\left(v-5\right)\left(v+9\right)}.
\frac{4v+8}{7v+49}
Cancel out \left(v-5\right)\left(v+9\right) in both numerator and denominator.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}