Evaluate
\frac{55}{14}\approx 3.928571429
Factor
\frac{5 \cdot 11}{2 \cdot 7} = 3\frac{13}{14} = 3.9285714285714284
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\frac{-6.1-10.4}{-4.2}
Multiply 2.6 and 4 to get 10.4.
\frac{-16.5}{-4.2}
Subtract 10.4 from -6.1 to get -16.5.
\frac{-165}{-42}
Expand \frac{-16.5}{-4.2} by multiplying both numerator and the denominator by 10.
\frac{55}{14}
Reduce the fraction \frac{-165}{-42} to lowest terms by extracting and canceling out -3.
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}