Evaluate
-\frac{31}{17}\approx -1.823529412
Factor
-\frac{31}{17} = -1\frac{14}{17} = -1.8235294117647058
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\frac{-15-16}{17}
Since -\frac{15}{17} and \frac{16}{17} have the same denominator, subtract them by subtracting their numerators.
-\frac{31}{17}
Subtract 16 from -15 to get -31.
Examples
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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
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Limits
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