Evaluate
-\frac{379}{195}\approx -1.943589744
Factor
-\frac{379}{195} = -1\frac{184}{195} = -1.9435897435897436
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-\frac{169}{195}-\frac{210}{195}
Least common multiple of 15 and 13 is 195. Convert -\frac{13}{15} and \frac{14}{13} to fractions with denominator 195.
\frac{-169-210}{195}
Since -\frac{169}{195} and \frac{210}{195} have the same denominator, subtract them by subtracting their numerators.
-\frac{379}{195}
Subtract 210 from -169 to get -379.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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
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