Evaluate
\frac{7}{11}\approx 0.636363636
Factor
\frac{7}{11} = 0.6363636363636364
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-\frac{7}{11}+\frac{11+3}{11}
Multiply 1 and 11 to get 11.
-\frac{7}{11}+\frac{14}{11}
Add 11 and 3 to get 14.
\frac{-7+14}{11}
Since -\frac{7}{11} and \frac{14}{11} have the same denominator, add them by adding their numerators.
\frac{7}{11}
Add -7 and 14 to get 7.
Examples
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Linear equation
y = 3x + 4
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Matrix
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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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