Evaluate
-\frac{1}{8}=-0.125
Factor
-\frac{1}{8} = -0.125
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\frac{-3\times 7}{14\times 12}
Divide \frac{-3}{14} by \frac{12}{7} by multiplying \frac{-3}{14} by the reciprocal of \frac{12}{7}.
\frac{-1}{2\times 4}
Cancel out 3\times 7 in both numerator and denominator.
\frac{-1}{8}
Multiply 2 and 4 to get 8.
-\frac{1}{8}
Fraction \frac{-1}{8} can be rewritten as -\frac{1}{8} by extracting the negative sign.
Examples
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
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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}