Evaluate
\frac{b}{13}+\frac{x}{a}+1
Factor
\frac{b+\frac{13x}{a}+13}{13}
Graph
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\frac{13x}{13a}+\frac{ba}{13a}+1
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of a and 13 is 13a. Multiply \frac{x}{a} times \frac{13}{13}. Multiply \frac{b}{13} times \frac{a}{a}.
\frac{13x+ba}{13a}+1
Since \frac{13x}{13a} and \frac{ba}{13a} have the same denominator, add them by adding their numerators.
\frac{13x+ba}{13a}+\frac{13a}{13a}
To add or subtract expressions, expand them to make their denominators the same. Multiply 1 times \frac{13a}{13a}.
\frac{13x+ba+13a}{13a}
Since \frac{13x+ba}{13a} and \frac{13a}{13a} have the same denominator, add them by adding their numerators.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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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