Evaluate
\frac{ba^{2}}{a+b}
Differentiate w.r.t. b
\frac{a^{3}}{\left(a+b\right)^{2}}
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\frac{a}{\frac{b}{ab}+\frac{a}{ab}}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of a and b is ab. Multiply \frac{1}{a} times \frac{b}{b}. Multiply \frac{1}{b} times \frac{a}{a}.
\frac{a}{\frac{b+a}{ab}}
Since \frac{b}{ab} and \frac{a}{ab} have the same denominator, add them by adding their numerators.
\frac{aab}{b+a}
Divide a by \frac{b+a}{ab} by multiplying a by the reciprocal of \frac{b+a}{ab}.
\frac{a^{2}b}{b+a}
Multiply a and a to get a^{2}.
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}