Evaluate
-6.375
Factor
-6.375
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\left(8-0.75\times \frac{1}{6}\right)\times \frac{1}{3}-9
Cancel out 3 and 3.
\left(8-\frac{3}{4}\times \frac{1}{6}\right)\times \frac{1}{3}-9
Convert decimal number 0.75 to fraction \frac{75}{100}. Reduce the fraction \frac{75}{100} to lowest terms by extracting and canceling out 25.
\left(8-\frac{3\times 1}{4\times 6}\right)\times \frac{1}{3}-9
Multiply \frac{3}{4} times \frac{1}{6} by multiplying numerator times numerator and denominator times denominator.
\left(8-\frac{3}{24}\right)\times \frac{1}{3}-9
Do the multiplications in the fraction \frac{3\times 1}{4\times 6}.
\left(8-\frac{1}{8}\right)\times \frac{1}{3}-9
Reduce the fraction \frac{3}{24} to lowest terms by extracting and canceling out 3.
\left(\frac{64}{8}-\frac{1}{8}\right)\times \frac{1}{3}-9
Convert 8 to fraction \frac{64}{8}.
\frac{64-1}{8}\times \frac{1}{3}-9
Since \frac{64}{8} and \frac{1}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{63}{8}\times \frac{1}{3}-9
Subtract 1 from 64 to get 63.
\frac{63\times 1}{8\times 3}-9
Multiply \frac{63}{8} times \frac{1}{3} by multiplying numerator times numerator and denominator times denominator.
\frac{63}{24}-9
Do the multiplications in the fraction \frac{63\times 1}{8\times 3}.
\frac{21}{8}-9
Reduce the fraction \frac{63}{24} to lowest terms by extracting and canceling out 3.
\frac{21}{8}-\frac{72}{8}
Convert 9 to fraction \frac{72}{8}.
\frac{21-72}{8}
Since \frac{21}{8} and \frac{72}{8} have the same denominator, subtract them by subtracting their numerators.
-\frac{51}{8}
Subtract 72 from 21 to get -51.
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}