Evaluate
\frac{75}{4}=18.75
Factor
\frac{3 \cdot 5 ^ {2}}{2 ^ {2}} = 18\frac{3}{4} = 18.75
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\frac{\frac{3}{4}+\frac{5\times 3}{6\times 5}}{1-\frac{2}{3}\times \frac{7}{5}}
Multiply \frac{5}{6} times \frac{3}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{3}{4}+\frac{3}{6}}{1-\frac{2}{3}\times \frac{7}{5}}
Cancel out 5 in both numerator and denominator.
\frac{\frac{3}{4}+\frac{1}{2}}{1-\frac{2}{3}\times \frac{7}{5}}
Reduce the fraction \frac{3}{6} to lowest terms by extracting and canceling out 3.
\frac{\frac{3}{4}+\frac{2}{4}}{1-\frac{2}{3}\times \frac{7}{5}}
Least common multiple of 4 and 2 is 4. Convert \frac{3}{4} and \frac{1}{2} to fractions with denominator 4.
\frac{\frac{3+2}{4}}{1-\frac{2}{3}\times \frac{7}{5}}
Since \frac{3}{4} and \frac{2}{4} have the same denominator, add them by adding their numerators.
\frac{\frac{5}{4}}{1-\frac{2}{3}\times \frac{7}{5}}
Add 3 and 2 to get 5.
\frac{\frac{5}{4}}{1-\frac{2\times 7}{3\times 5}}
Multiply \frac{2}{3} times \frac{7}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{5}{4}}{1-\frac{14}{15}}
Do the multiplications in the fraction \frac{2\times 7}{3\times 5}.
\frac{\frac{5}{4}}{\frac{15}{15}-\frac{14}{15}}
Convert 1 to fraction \frac{15}{15}.
\frac{\frac{5}{4}}{\frac{15-14}{15}}
Since \frac{15}{15} and \frac{14}{15} have the same denominator, subtract them by subtracting their numerators.
\frac{\frac{5}{4}}{\frac{1}{15}}
Subtract 14 from 15 to get 1.
\frac{5}{4}\times 15
Divide \frac{5}{4} by \frac{1}{15} by multiplying \frac{5}{4} by the reciprocal of \frac{1}{15}.
\frac{5\times 15}{4}
Express \frac{5}{4}\times 15 as a single fraction.
\frac{75}{4}
Multiply 5 and 15 to get 75.
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}