Evaluate
\frac{1}{5}=0.2
Factor
\frac{1}{5} = 0.2
Quiz
Arithmetic
5 problems similar to:
\frac { - 6 } { 25 } \div \frac { 2 } { 5 } + \frac { 4 } { 5 }
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\frac{-6\times 5}{25\times 2}+\frac{4}{5}
Divide \frac{-6}{25} by \frac{2}{5} by multiplying \frac{-6}{25} by the reciprocal of \frac{2}{5}.
\frac{-3}{5}+\frac{4}{5}
Cancel out 2\times 5 in both numerator and denominator.
-\frac{3}{5}+\frac{4}{5}
Fraction \frac{-3}{5} can be rewritten as -\frac{3}{5} by extracting the negative sign.
\frac{-3+4}{5}
Since -\frac{3}{5} and \frac{4}{5} have the same denominator, add them by adding their numerators.
\frac{1}{5}
Add -3 and 4 to get 1.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}