Evaluate
\frac{784}{99}\approx 7.919191919
Factor
\frac{2 ^ {4} \cdot 7 ^ {2}}{3 ^ {2} \cdot 11} = 7\frac{91}{99} = 7.91919191919192
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\frac{22+6}{11}\times \frac{6\times 9+2}{9}\times \frac{1}{2}
Multiply 2 and 11 to get 22.
\frac{28}{11}\times \frac{6\times 9+2}{9}\times \frac{1}{2}
Add 22 and 6 to get 28.
\frac{28}{11}\times \frac{54+2}{9}\times \frac{1}{2}
Multiply 6 and 9 to get 54.
\frac{28}{11}\times \frac{56}{9}\times \frac{1}{2}
Add 54 and 2 to get 56.
\frac{28\times 56}{11\times 9}\times \frac{1}{2}
Multiply \frac{28}{11} times \frac{56}{9} by multiplying numerator times numerator and denominator times denominator.
\frac{1568}{99}\times \frac{1}{2}
Do the multiplications in the fraction \frac{28\times 56}{11\times 9}.
\frac{1568\times 1}{99\times 2}
Multiply \frac{1568}{99} times \frac{1}{2} by multiplying numerator times numerator and denominator times denominator.
\frac{1568}{198}
Do the multiplications in the fraction \frac{1568\times 1}{99\times 2}.
\frac{784}{99}
Reduce the fraction \frac{1568}{198} to lowest terms by extracting and canceling out 2.
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y = 3x + 4
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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}