Evaluate
\frac{45}{31}\approx 1.451612903
Factor
\frac{3 ^ {2} \cdot 5}{31} = 1\frac{14}{31} = 1.4516129032258065
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\frac{5\left(\frac{5\times 24}{31}-3\right)}{3}
Express 5\times \frac{24}{31} as a single fraction.
\frac{5\left(\frac{120}{31}-3\right)}{3}
Multiply 5 and 24 to get 120.
\frac{5\left(\frac{120}{31}-\frac{93}{31}\right)}{3}
Convert 3 to fraction \frac{93}{31}.
\frac{5\times \frac{120-93}{31}}{3}
Since \frac{120}{31} and \frac{93}{31} have the same denominator, subtract them by subtracting their numerators.
\frac{5\times \frac{27}{31}}{3}
Subtract 93 from 120 to get 27.
\frac{\frac{5\times 27}{31}}{3}
Express 5\times \frac{27}{31} as a single fraction.
\frac{\frac{135}{31}}{3}
Multiply 5 and 27 to get 135.
\frac{135}{31\times 3}
Express \frac{\frac{135}{31}}{3} as a single fraction.
\frac{135}{93}
Multiply 31 and 3 to get 93.
\frac{45}{31}
Reduce the fraction \frac{135}{93} to lowest terms by extracting and canceling out 3.
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\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}