Evaluate
\frac{86}{7}\approx 12.285714286
Factor
\frac{2 \cdot 43}{7} = 12\frac{2}{7} = 12.285714285714286
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\frac{112+0}{7}-\frac{3\times 7+5}{7}
Multiply 16 and 7 to get 112.
\frac{112}{7}-\frac{3\times 7+5}{7}
Add 112 and 0 to get 112.
16-\frac{3\times 7+5}{7}
Divide 112 by 7 to get 16.
16-\frac{21+5}{7}
Multiply 3 and 7 to get 21.
16-\frac{26}{7}
Add 21 and 5 to get 26.
\frac{112}{7}-\frac{26}{7}
Convert 16 to fraction \frac{112}{7}.
\frac{112-26}{7}
Since \frac{112}{7} and \frac{26}{7} have the same denominator, subtract them by subtracting their numerators.
\frac{86}{7}
Subtract 26 from 112 to get 86.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}