Evaluate
\frac{7}{12x}
Differentiate w.r.t. x
-\frac{7}{12x^{2}}
Graph
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\frac{4}{12x}+\frac{3}{12x}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 3x and 4x is 12x. Multiply \frac{1}{3x} times \frac{4}{4}. Multiply \frac{1}{4x} times \frac{3}{3}.
\frac{7}{12x}
Since \frac{4}{12x} and \frac{3}{12x} have the same denominator, add them by adding their numerators. Add 4 and 3 to get 7.
Examples
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{ 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
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Limits
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