Evaluate
\frac{\sqrt{2}}{5}+3\approx 3.282842712
Factor
\frac{\sqrt{2} + 15}{5} = 3.2828427124746193
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\frac{\sqrt{2}}{5}+\frac{3\times 5}{5}
To add or subtract expressions, expand them to make their denominators the same. Multiply 3 times \frac{5}{5}.
\frac{\sqrt{2}+3\times 5}{5}
Since \frac{\sqrt{2}}{5} and \frac{3\times 5}{5} have the same denominator, add them by adding their numerators.
\frac{\sqrt{2}+15}{5}
Do the multiplications in \sqrt{2}+3\times 5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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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