| \frac { 7 } { 8 } \times | \frac { 4 } { 5 }
Evaluate
\frac{7}{10}=0.7
Factor
\frac{7}{2 \cdot 5} = 0.7
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|\frac{7}{8}\times \frac{4}{5}|
The absolute value of a real number a is a when a\geq 0, or -a when a<0. The absolute value of \frac{4}{5} is \frac{4}{5}.
|\frac{7\times 4}{8\times 5}|
Multiply \frac{7}{8} times \frac{4}{5} by multiplying numerator times numerator and denominator times denominator.
|\frac{28}{40}|
Do the multiplications in the fraction \frac{7\times 4}{8\times 5}.
|\frac{7}{10}|
Reduce the fraction \frac{28}{40} to lowest terms by extracting and canceling out 4.
\frac{7}{10}
The absolute value of a real number a is a when a\geq 0, or -a when a<0. The absolute value of \frac{7}{10} is \frac{7}{10}.
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}