Evaluate
-\frac{47}{30}\approx -1.566666667
Factor
-\frac{47}{30} = -1\frac{17}{30} = -1.5666666666666667
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\frac{7}{6}\times \frac{-3-8}{5}+1
Since -\frac{3}{5} and \frac{8}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{6}\left(-\frac{11}{5}\right)+1
Subtract 8 from -3 to get -11.
\frac{7\left(-11\right)}{6\times 5}+1
Multiply \frac{7}{6} times -\frac{11}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{-77}{30}+1
Do the multiplications in the fraction \frac{7\left(-11\right)}{6\times 5}.
-\frac{77}{30}+1
Fraction \frac{-77}{30} can be rewritten as -\frac{77}{30} by extracting the negative sign.
-\frac{77}{30}+\frac{30}{30}
Convert 1 to fraction \frac{30}{30}.
\frac{-77+30}{30}
Since -\frac{77}{30} and \frac{30}{30} have the same denominator, add them by adding their numerators.
-\frac{47}{30}
Add -77 and 30 to get -47.
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}