Evaluate
\frac{42}{13}\approx 3.230769231
Factor
\frac{2 \cdot 3 \cdot 7}{13} = 3\frac{3}{13} = 3.230769230769231
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6-\frac{26+10}{13}
Multiply 2 and 13 to get 26.
6-\frac{36}{13}
Add 26 and 10 to get 36.
\frac{78}{13}-\frac{36}{13}
Convert 6 to fraction \frac{78}{13}.
\frac{78-36}{13}
Since \frac{78}{13} and \frac{36}{13} have the same denominator, subtract them by subtracting their numerators.
\frac{42}{13}
Subtract 36 from 78 to get 42.
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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
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}