Evaluate
\frac{15}{8}=1.875
Factor
\frac{3 \cdot 5}{2 ^ {3}} = 1\frac{7}{8} = 1.875
Share
Copied to clipboard
\frac{\left(5\times 12+5\right)\times 9}{12\left(2\times 9+8\right)}
Divide \frac{5\times 12+5}{12} by \frac{2\times 9+8}{9} by multiplying \frac{5\times 12+5}{12} by the reciprocal of \frac{2\times 9+8}{9}.
\frac{3\left(5+5\times 12\right)}{4\left(8+2\times 9\right)}
Cancel out 3 in both numerator and denominator.
\frac{3\left(5+60\right)}{4\left(8+2\times 9\right)}
Multiply 5 and 12 to get 60.
\frac{3\times 65}{4\left(8+2\times 9\right)}
Add 5 and 60 to get 65.
\frac{195}{4\left(8+2\times 9\right)}
Multiply 3 and 65 to get 195.
\frac{195}{4\left(8+18\right)}
Multiply 2 and 9 to get 18.
\frac{195}{4\times 26}
Add 8 and 18 to get 26.
\frac{195}{104}
Multiply 4 and 26 to get 104.
\frac{15}{8}
Reduce the fraction \frac{195}{104} to lowest terms by extracting and canceling out 13.
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}