Evaluate
\frac{9}{10}=0.9
Factor
\frac{3 ^ {2}}{2 \cdot 5} = 0.9
Quiz
Arithmetic
5 problems similar to:
\frac { 3 } { 4 } + ( \frac { 4 } { 5 } \div 5 \frac { 1 } { 3 } )
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\frac{3}{4}+\frac{4\times 3}{5\left(5\times 3+1\right)}
Divide \frac{4}{5} by \frac{5\times 3+1}{3} by multiplying \frac{4}{5} by the reciprocal of \frac{5\times 3+1}{3}.
\frac{3}{4}+\frac{12}{5\left(5\times 3+1\right)}
Multiply 4 and 3 to get 12.
\frac{3}{4}+\frac{12}{5\left(15+1\right)}
Multiply 5 and 3 to get 15.
\frac{3}{4}+\frac{12}{5\times 16}
Add 15 and 1 to get 16.
\frac{3}{4}+\frac{12}{80}
Multiply 5 and 16 to get 80.
\frac{3}{4}+\frac{3}{20}
Reduce the fraction \frac{12}{80} to lowest terms by extracting and canceling out 4.
\frac{15}{20}+\frac{3}{20}
Least common multiple of 4 and 20 is 20. Convert \frac{3}{4} and \frac{3}{20} to fractions with denominator 20.
\frac{15+3}{20}
Since \frac{15}{20} and \frac{3}{20} have the same denominator, add them by adding their numerators.
\frac{18}{20}
Add 15 and 3 to get 18.
\frac{9}{10}
Reduce the fraction \frac{18}{20} to lowest terms by extracting and canceling out 2.
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}