Evaluate
\frac{11}{15}\approx 0.733333333
Factor
\frac{11}{3 \cdot 5} = 0.7333333333333333
Quiz
Arithmetic
5 problems similar to:
\frac { 1 } { 2 } + \frac { 3 } { 5 } \times \frac { 7 } { 18 }
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\frac{1}{2}+\frac{3\times 7}{5\times 18}
Multiply \frac{3}{5} times \frac{7}{18} by multiplying numerator times numerator and denominator times denominator.
\frac{1}{2}+\frac{21}{90}
Do the multiplications in the fraction \frac{3\times 7}{5\times 18}.
\frac{1}{2}+\frac{7}{30}
Reduce the fraction \frac{21}{90} to lowest terms by extracting and canceling out 3.
\frac{15}{30}+\frac{7}{30}
Least common multiple of 2 and 30 is 30. Convert \frac{1}{2} and \frac{7}{30} to fractions with denominator 30.
\frac{15+7}{30}
Since \frac{15}{30} and \frac{7}{30} have the same denominator, add them by adding their numerators.
\frac{22}{30}
Add 15 and 7 to get 22.
\frac{11}{15}
Reduce the fraction \frac{22}{30} 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}