Evaluate
\frac{15}{8}=1.875
Factor
\frac{3 \cdot 5}{2 ^ {3}} = 1\frac{7}{8} = 1.875
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\frac{24+5}{8}-\frac{1\times 4+3}{4}
Multiply 3 and 8 to get 24.
\frac{29}{8}-\frac{1\times 4+3}{4}
Add 24 and 5 to get 29.
\frac{29}{8}-\frac{4+3}{4}
Multiply 1 and 4 to get 4.
\frac{29}{8}-\frac{7}{4}
Add 4 and 3 to get 7.
\frac{29}{8}-\frac{14}{8}
Least common multiple of 8 and 4 is 8. Convert \frac{29}{8} and \frac{7}{4} to fractions with denominator 8.
\frac{29-14}{8}
Since \frac{29}{8} and \frac{14}{8} have the same denominator, subtract them by subtracting their numerators.
\frac{15}{8}
Subtract 14 from 29 to get 15.
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}