Evaluate
\frac{321}{20}=16.05
Factor
\frac{3 \cdot 107}{2 ^ {2} \cdot 5} = 16\frac{1}{20} = 16.05
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\frac{500+25}{100}+\frac{10\times 45+36}{45}
Multiply 5 and 100 to get 500.
\frac{525}{100}+\frac{10\times 45+36}{45}
Add 500 and 25 to get 525.
\frac{21}{4}+\frac{10\times 45+36}{45}
Reduce the fraction \frac{525}{100} to lowest terms by extracting and canceling out 25.
\frac{21}{4}+\frac{450+36}{45}
Multiply 10 and 45 to get 450.
\frac{21}{4}+\frac{486}{45}
Add 450 and 36 to get 486.
\frac{21}{4}+\frac{54}{5}
Reduce the fraction \frac{486}{45} to lowest terms by extracting and canceling out 9.
\frac{105}{20}+\frac{216}{20}
Least common multiple of 4 and 5 is 20. Convert \frac{21}{4} and \frac{54}{5} to fractions with denominator 20.
\frac{105+216}{20}
Since \frac{105}{20} and \frac{216}{20} have the same denominator, add them by adding their numerators.
\frac{321}{20}
Add 105 and 216 to get 321.
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}