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-\frac{13}{100}\times \frac{1}{13}\left(-100\right)
Convert decimal number -0.13 to fraction -\frac{13}{100}.
\frac{-13}{100\times 13}\left(-100\right)
Multiply -\frac{13}{100} times \frac{1}{13} by multiplying numerator times numerator and denominator times denominator.
\frac{-13}{1300}\left(-100\right)
Do the multiplications in the fraction \frac{-13}{100\times 13}.
-\frac{1}{100}\left(-100\right)
Reduce the fraction \frac{-13}{1300} to lowest terms by extracting and canceling out 13.
\frac{-\left(-100\right)}{100}
Express -\frac{1}{100}\left(-100\right) as a single fraction.
\frac{100}{100}
Multiply -1 and -100 to get 100.
1
Divide 100 by 100 to get 1.
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}