Evaluate
\frac{641}{25}=25.64
Factor
\frac{641}{5 ^ {2}} = 25\frac{16}{25} = 25.64
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15\times \frac{13}{50}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Reduce the fraction \frac{26}{100} to lowest terms by extracting and canceling out 2.
\frac{15\times 13}{50}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Express 15\times \frac{13}{50} as a single fraction.
\frac{195}{50}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Multiply 15 and 13 to get 195.
\frac{39}{10}+25\times \frac{40}{100}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Reduce the fraction \frac{195}{50} to lowest terms by extracting and canceling out 5.
\frac{39}{10}+25\times \frac{2}{5}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Reduce the fraction \frac{40}{100} to lowest terms by extracting and canceling out 20.
\frac{39}{10}+\frac{25\times 2}{5}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Express 25\times \frac{2}{5} as a single fraction.
\frac{39}{10}+\frac{50}{5}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Multiply 25 and 2 to get 50.
\frac{39}{10}+10+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Divide 50 by 5 to get 10.
\frac{39}{10}+\frac{100}{10}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Convert 10 to fraction \frac{100}{10}.
\frac{39+100}{10}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Since \frac{39}{10} and \frac{100}{10} have the same denominator, add them by adding their numerators.
\frac{139}{10}+36\times \frac{24}{100}+25\times \frac{8}{100}+55\times \frac{2}{100}
Add 39 and 100 to get 139.
\frac{139}{10}+36\times \frac{6}{25}+25\times \frac{8}{100}+55\times \frac{2}{100}
Reduce the fraction \frac{24}{100} to lowest terms by extracting and canceling out 4.
\frac{139}{10}+\frac{36\times 6}{25}+25\times \frac{8}{100}+55\times \frac{2}{100}
Express 36\times \frac{6}{25} as a single fraction.
\frac{139}{10}+\frac{216}{25}+25\times \frac{8}{100}+55\times \frac{2}{100}
Multiply 36 and 6 to get 216.
\frac{695}{50}+\frac{432}{50}+25\times \frac{8}{100}+55\times \frac{2}{100}
Least common multiple of 10 and 25 is 50. Convert \frac{139}{10} and \frac{216}{25} to fractions with denominator 50.
\frac{695+432}{50}+25\times \frac{8}{100}+55\times \frac{2}{100}
Since \frac{695}{50} and \frac{432}{50} have the same denominator, add them by adding their numerators.
\frac{1127}{50}+25\times \frac{8}{100}+55\times \frac{2}{100}
Add 695 and 432 to get 1127.
\frac{1127}{50}+25\times \frac{2}{25}+55\times \frac{2}{100}
Reduce the fraction \frac{8}{100} to lowest terms by extracting and canceling out 4.
\frac{1127}{50}+2+55\times \frac{2}{100}
Cancel out 25 and 25.
\frac{1127}{50}+\frac{100}{50}+55\times \frac{2}{100}
Convert 2 to fraction \frac{100}{50}.
\frac{1127+100}{50}+55\times \frac{2}{100}
Since \frac{1127}{50} and \frac{100}{50} have the same denominator, add them by adding their numerators.
\frac{1227}{50}+55\times \frac{2}{100}
Add 1127 and 100 to get 1227.
\frac{1227}{50}+55\times \frac{1}{50}
Reduce the fraction \frac{2}{100} to lowest terms by extracting and canceling out 2.
\frac{1227}{50}+\frac{55}{50}
Multiply 55 and \frac{1}{50} to get \frac{55}{50}.
\frac{1227+55}{50}
Since \frac{1227}{50} and \frac{55}{50} have the same denominator, add them by adding their numerators.
\frac{1282}{50}
Add 1227 and 55 to get 1282.
\frac{641}{25}
Reduce the fraction \frac{1282}{50} to lowest terms by extracting and canceling out 2.
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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}