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-48.825
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-48.825
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0.63\left(-\frac{5}{2}\right)\times 31
Fraction \frac{5}{-2} can be rewritten as -\frac{5}{2} by extracting the negative sign.
\frac{63}{100}\left(-\frac{5}{2}\right)\times 31
Convert decimal number 0.63 to fraction \frac{63}{100}.
\frac{63\left(-5\right)}{100\times 2}\times 31
Multiply \frac{63}{100} times -\frac{5}{2} by multiplying numerator times numerator and denominator times denominator.
\frac{-315}{200}\times 31
Do the multiplications in the fraction \frac{63\left(-5\right)}{100\times 2}.
-\frac{63}{40}\times 31
Reduce the fraction \frac{-315}{200} to lowest terms by extracting and canceling out 5.
\frac{-63\times 31}{40}
Express -\frac{63}{40}\times 31 as a single fraction.
\frac{-1953}{40}
Multiply -63 and 31 to get -1953.
-\frac{1953}{40}
Fraction \frac{-1953}{40} can be rewritten as -\frac{1953}{40} by extracting the negative sign.
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}