Evaluate
\frac{14}{5}=2.8
Factor
\frac{2 \cdot 7}{5} = 2\frac{4}{5} = 2.8
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\frac{1}{10}+1\times \frac{1}{10}+3\times \frac{3}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Multiply 1 and \frac{1}{10} to get \frac{1}{10}.
\frac{1}{10}+\frac{1}{10}+3\times \frac{3}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Multiply 1 and \frac{1}{10} to get \frac{1}{10}.
\frac{1+1}{10}+3\times \frac{3}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Since \frac{1}{10} and \frac{1}{10} have the same denominator, add them by adding their numerators.
\frac{2}{10}+3\times \frac{3}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Add 1 and 1 to get 2.
\frac{1}{5}+3\times \frac{3}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Reduce the fraction \frac{2}{10} to lowest terms by extracting and canceling out 2.
\frac{1}{5}+\frac{3\times 3}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Express 3\times \frac{3}{10} as a single fraction.
\frac{1}{5}+\frac{9}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Multiply 3 and 3 to get 9.
\frac{2}{10}+\frac{9}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Least common multiple of 5 and 10 is 10. Convert \frac{1}{5} and \frac{9}{10} to fractions with denominator 10.
\frac{2+9}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Since \frac{2}{10} and \frac{9}{10} have the same denominator, add them by adding their numerators.
\frac{11}{10}+2\times \frac{2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Add 2 and 9 to get 11.
\frac{11}{10}+\frac{2\times 2}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Express 2\times \frac{2}{5} as a single fraction.
\frac{11}{10}+\frac{4}{5}+2\times \frac{2}{5}+1\times \frac{1}{10}
Multiply 2 and 2 to get 4.
\frac{11}{10}+\frac{8}{10}+2\times \frac{2}{5}+1\times \frac{1}{10}
Least common multiple of 10 and 5 is 10. Convert \frac{11}{10} and \frac{4}{5} to fractions with denominator 10.
\frac{11+8}{10}+2\times \frac{2}{5}+1\times \frac{1}{10}
Since \frac{11}{10} and \frac{8}{10} have the same denominator, add them by adding their numerators.
\frac{19}{10}+2\times \frac{2}{5}+1\times \frac{1}{10}
Add 11 and 8 to get 19.
\frac{19}{10}+\frac{2\times 2}{5}+1\times \frac{1}{10}
Express 2\times \frac{2}{5} as a single fraction.
\frac{19}{10}+\frac{4}{5}+1\times \frac{1}{10}
Multiply 2 and 2 to get 4.
\frac{19}{10}+\frac{8}{10}+1\times \frac{1}{10}
Least common multiple of 10 and 5 is 10. Convert \frac{19}{10} and \frac{4}{5} to fractions with denominator 10.
\frac{19+8}{10}+1\times \frac{1}{10}
Since \frac{19}{10} and \frac{8}{10} have the same denominator, add them by adding their numerators.
\frac{27}{10}+1\times \frac{1}{10}
Add 19 and 8 to get 27.
\frac{27}{10}+\frac{1}{10}
Multiply 1 and \frac{1}{10} to get \frac{1}{10}.
\frac{27+1}{10}
Since \frac{27}{10} and \frac{1}{10} have the same denominator, add them by adding their numerators.
\frac{28}{10}
Add 27 and 1 to get 28.
\frac{14}{5}
Reduce the fraction \frac{28}{10} 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
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}