Evaluate
-\frac{27}{17}\approx -1.588235294
Factor
-\frac{27}{17} = -1\frac{10}{17} = -1.588235294117647
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7\times \frac{1}{17}-2\times 1
Divide 50 by 50 to get 1.
\frac{7}{17}-2\times 1
Multiply 7 and \frac{1}{17} to get \frac{7}{17}.
\frac{7}{17}-2
Multiply 2 and 1 to get 2.
\frac{7}{17}-\frac{34}{17}
Convert 2 to fraction \frac{34}{17}.
\frac{7-34}{17}
Since \frac{7}{17} and \frac{34}{17} have the same denominator, subtract them by subtracting their numerators.
-\frac{27}{17}
Subtract 34 from 7 to get -27.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}