Evaluate
-\frac{26}{261}\approx -0.099616858
Factor
-\frac{26}{261} = -0.09961685823754789
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\frac{3}{261}-\frac{29}{261}
Least common multiple of 87 and 9 is 261. Convert \frac{1}{87} and \frac{1}{9} to fractions with denominator 261.
\frac{3-29}{261}
Since \frac{3}{261} and \frac{29}{261} have the same denominator, subtract them by subtracting their numerators.
-\frac{26}{261}
Subtract 29 from 3 to get -26.
Examples
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y = 3x + 4
Arithmetic
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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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