Evaluate
\frac{5x}{4}+4
Factor
\frac{5x+16}{4}
Graph
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\frac{5x}{4}+\frac{4\times 4}{4}
To add or subtract expressions, expand them to make their denominators the same. Multiply 4 times \frac{4}{4}.
\frac{5x+4\times 4}{4}
Since \frac{5x}{4} and \frac{4\times 4}{4} have the same denominator, add them by adding their numerators.
\frac{5x+16}{4}
Do the multiplications in 5x+4\times 4.
\frac{5x+16}{4}
Factor out \frac{1}{4}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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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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