Evaluate
\frac{25}{8}=3.125
Factor
\frac{5 ^ {2}}{2 ^ {3}} = 3\frac{1}{8} = 3.125
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2+\left(3\times \frac{4}{3}+\frac{1}{2}\right)\left(\frac{5}{4}-1\right)
Divide 3 by \frac{3}{4} by multiplying 3 by the reciprocal of \frac{3}{4}.
2+\left(4+\frac{1}{2}\right)\left(\frac{5}{4}-1\right)
Cancel out 3 and 3.
2+\left(\frac{8}{2}+\frac{1}{2}\right)\left(\frac{5}{4}-1\right)
Convert 4 to fraction \frac{8}{2}.
2+\frac{8+1}{2}\left(\frac{5}{4}-1\right)
Since \frac{8}{2} and \frac{1}{2} have the same denominator, add them by adding their numerators.
2+\frac{9}{2}\left(\frac{5}{4}-1\right)
Add 8 and 1 to get 9.
2+\frac{9}{2}\left(\frac{5}{4}-\frac{4}{4}\right)
Convert 1 to fraction \frac{4}{4}.
2+\frac{9}{2}\times \frac{5-4}{4}
Since \frac{5}{4} and \frac{4}{4} have the same denominator, subtract them by subtracting their numerators.
2+\frac{9}{2}\times \frac{1}{4}
Subtract 4 from 5 to get 1.
2+\frac{9\times 1}{2\times 4}
Multiply \frac{9}{2} times \frac{1}{4} by multiplying numerator times numerator and denominator times denominator.
2+\frac{9}{8}
Do the multiplications in the fraction \frac{9\times 1}{2\times 4}.
\frac{16}{8}+\frac{9}{8}
Convert 2 to fraction \frac{16}{8}.
\frac{16+9}{8}
Since \frac{16}{8} and \frac{9}{8} have the same denominator, add them by adding their numerators.
\frac{25}{8}
Add 16 and 9 to get 25.
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}