Evaluate
\frac{18}{49}\approx 0.367346939
Factor
\frac{2 \cdot 3 ^ {2}}{7 ^ {2}} = 0.3673469387755102
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\frac{6}{7}\times \frac{3}{7}
Reduce the fraction \frac{9}{21} to lowest terms by extracting and canceling out 3.
\frac{6\times 3}{7\times 7}
Multiply \frac{6}{7} times \frac{3}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{18}{49}
Do the multiplications in the fraction \frac{6\times 3}{7\times 7}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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