Evaluate
\frac{x}{14}+\frac{33}{35}
Factor
\frac{5x+66}{70}
Graph
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\frac{33\times 2}{70}+\frac{5x}{70}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 35 and 14 is 70. Multiply \frac{33}{35} times \frac{2}{2}. Multiply \frac{x}{14} times \frac{5}{5}.
\frac{33\times 2+5x}{70}
Since \frac{33\times 2}{70} and \frac{5x}{70} have the same denominator, add them by adding their numerators.
\frac{66+5x}{70}
Do the multiplications in 33\times 2+5x.
\frac{66+5x}{70}
Factor out \frac{1}{70}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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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