Evaluate
-\frac{91}{29}\approx -3.137931034
Factor
-\frac{91}{29} = -3\frac{4}{29} = -3.1379310344827585
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-\frac{\frac{10+3}{5}}{\frac{3}{7}+\frac{4}{10}}
Multiply 2 and 5 to get 10.
-\frac{\frac{13}{5}}{\frac{3}{7}+\frac{4}{10}}
Add 10 and 3 to get 13.
-\frac{\frac{13}{5}}{\frac{3}{7}+\frac{2}{5}}
Reduce the fraction \frac{4}{10} to lowest terms by extracting and canceling out 2.
-\frac{\frac{13}{5}}{\frac{15}{35}+\frac{14}{35}}
Least common multiple of 7 and 5 is 35. Convert \frac{3}{7} and \frac{2}{5} to fractions with denominator 35.
-\frac{\frac{13}{5}}{\frac{15+14}{35}}
Since \frac{15}{35} and \frac{14}{35} have the same denominator, add them by adding their numerators.
-\frac{\frac{13}{5}}{\frac{29}{35}}
Add 15 and 14 to get 29.
-\frac{13}{5}\times \frac{35}{29}
Divide \frac{13}{5} by \frac{29}{35} by multiplying \frac{13}{5} by the reciprocal of \frac{29}{35}.
-\frac{13\times 35}{5\times 29}
Multiply \frac{13}{5} times \frac{35}{29} by multiplying numerator times numerator and denominator times denominator.
-\frac{455}{145}
Do the multiplications in the fraction \frac{13\times 35}{5\times 29}.
-\frac{91}{29}
Reduce the fraction \frac{455}{145} 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}