Evaluate
-\frac{412}{21}\approx -19.619047619
Factor
-\frac{412}{21} = -19\frac{13}{21} = -19.61904761904762
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\frac{153+6}{9}-\frac{37\times 21+6}{21}
Multiply 17 and 9 to get 153.
\frac{159}{9}-\frac{37\times 21+6}{21}
Add 153 and 6 to get 159.
\frac{53}{3}-\frac{37\times 21+6}{21}
Reduce the fraction \frac{159}{9} to lowest terms by extracting and canceling out 3.
\frac{53}{3}-\frac{777+6}{21}
Multiply 37 and 21 to get 777.
\frac{53}{3}-\frac{783}{21}
Add 777 and 6 to get 783.
\frac{53}{3}-\frac{261}{7}
Reduce the fraction \frac{783}{21} to lowest terms by extracting and canceling out 3.
\frac{371}{21}-\frac{783}{21}
Least common multiple of 3 and 7 is 21. Convert \frac{53}{3} and \frac{261}{7} to fractions with denominator 21.
\frac{371-783}{21}
Since \frac{371}{21} and \frac{783}{21} have the same denominator, subtract them by subtracting their numerators.
-\frac{412}{21}
Subtract 783 from 371 to get -412.
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}