Evaluate
\frac{43}{2}=21.5
Factor
\frac{43}{2} = 21\frac{1}{2} = 21.5
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\frac{42}{2}+\frac{1}{2}
Convert 21 to fraction \frac{42}{2}.
\frac{42+1}{2}
Since \frac{42}{2} and \frac{1}{2} have the same denominator, add them by adding their numerators.
\frac{43}{2}
Add 42 and 1 to get 43.
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.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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