Evaluate
2
Factor
2
Share
Copied to clipboard
-\frac{8+3}{4}-\left(-4.75\right)
Multiply 2 and 4 to get 8.
-\frac{11}{4}-\left(-4.75\right)
Add 8 and 3 to get 11.
-\frac{11}{4}+4.75
The opposite of -4.75 is 4.75.
-\frac{11}{4}+\frac{19}{4}
Convert decimal number 4.75 to fraction \frac{475}{100}. Reduce the fraction \frac{475}{100} to lowest terms by extracting and canceling out 25.
\frac{-11+19}{4}
Since -\frac{11}{4} and \frac{19}{4} have the same denominator, add them by adding their numerators.
\frac{8}{4}
Add -11 and 19 to get 8.
2
Divide 8 by 4 to get 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}