\frac { 6.5 \times 5 \times 49 } { 21 . \times 27 \times 5 ^ { 2 } } =
Evaluate
\frac{91}{810}\approx 0.112345679
Factor
\frac{7 \cdot 13}{2 \cdot 5 \cdot 3 ^ {4}} = 0.11234567901234568
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\frac{6.5\times 7}{3\times 5\times 27}
Cancel out 5\times 7 in both numerator and denominator.
\frac{45.5}{3\times 5\times 27}
Multiply 6.5 and 7 to get 45.5.
\frac{45.5}{15\times 27}
Multiply 3 and 5 to get 15.
\frac{45.5}{405}
Multiply 15 and 27 to get 405.
\frac{455}{4050}
Expand \frac{45.5}{405} by multiplying both numerator and the denominator by 10.
\frac{91}{810}
Reduce the fraction \frac{455}{4050} to lowest terms by extracting and canceling out 5.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}