Evaluate
-3.75
Factor
-3.75
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-4.875+\frac{-1.5^{2}}{-2}
Subtract 6 from 1.125 to get -4.875.
-4.875+\frac{-2.25}{-2}
Calculate 1.5 to the power of 2 and get 2.25.
-4.875+\frac{-225}{-200}
Expand \frac{-2.25}{-2} by multiplying both numerator and the denominator by 100.
-4.875+\frac{9}{8}
Reduce the fraction \frac{-225}{-200} to lowest terms by extracting and canceling out -25.
-\frac{39}{8}+\frac{9}{8}
Convert decimal number -4.875 to fraction -\frac{4875}{1000}. Reduce the fraction -\frac{4875}{1000} to lowest terms by extracting and canceling out 125.
\frac{-39+9}{8}
Since -\frac{39}{8} and \frac{9}{8} have the same denominator, add them by adding their numerators.
\frac{-30}{8}
Add -39 and 9 to get -30.
-\frac{15}{4}
Reduce the fraction \frac{-30}{8} to lowest terms by extracting and canceling out 2.
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}