Evaluate
12
Factor
2^{2}\times 3
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\frac{495+63}{99}\times \frac{1\times 31+13}{31}\times \frac{1\times 90+45}{90}
Multiply 5 and 99 to get 495.
\frac{558}{99}\times \frac{1\times 31+13}{31}\times \frac{1\times 90+45}{90}
Add 495 and 63 to get 558.
\frac{62}{11}\times \frac{1\times 31+13}{31}\times \frac{1\times 90+45}{90}
Reduce the fraction \frac{558}{99} to lowest terms by extracting and canceling out 9.
\frac{62}{11}\times \frac{31+13}{31}\times \frac{1\times 90+45}{90}
Multiply 1 and 31 to get 31.
\frac{62}{11}\times \frac{44}{31}\times \frac{1\times 90+45}{90}
Add 31 and 13 to get 44.
\frac{62\times 44}{11\times 31}\times \frac{1\times 90+45}{90}
Multiply \frac{62}{11} times \frac{44}{31} by multiplying numerator times numerator and denominator times denominator.
\frac{2728}{341}\times \frac{1\times 90+45}{90}
Do the multiplications in the fraction \frac{62\times 44}{11\times 31}.
8\times \frac{1\times 90+45}{90}
Divide 2728 by 341 to get 8.
8\times \frac{90+45}{90}
Multiply 1 and 90 to get 90.
8\times \frac{135}{90}
Add 90 and 45 to get 135.
8\times \frac{3}{2}
Reduce the fraction \frac{135}{90} to lowest terms by extracting and canceling out 45.
\frac{8\times 3}{2}
Express 8\times \frac{3}{2} as a single fraction.
\frac{24}{2}
Multiply 8 and 3 to get 24.
12
Divide 24 by 2 to get 12.
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}