Evaluate
\frac{515}{7}\approx 73.571428571
Factor
\frac{5 \cdot 103}{7} = 73\frac{4}{7} = 73.57142857142857
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83-\frac{11\times 6}{7}
Express \frac{11}{7}\times 6 as a single fraction.
83-\frac{66}{7}
Multiply 11 and 6 to get 66.
\frac{581}{7}-\frac{66}{7}
Convert 83 to fraction \frac{581}{7}.
\frac{581-66}{7}
Since \frac{581}{7} and \frac{66}{7} have the same denominator, subtract them by subtracting their numerators.
\frac{515}{7}
Subtract 66 from 581 to get 515.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}