Evaluate
\frac{7}{4}=1.75
Factor
\frac{7}{2 ^ {2}} = 1\frac{3}{4} = 1.75
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\frac{4\times 12}{9\times 5}+\frac{\frac{7}{8}}{\frac{5}{6}}-\frac{11}{30}
Multiply \frac{4}{9} times \frac{12}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{48}{45}+\frac{\frac{7}{8}}{\frac{5}{6}}-\frac{11}{30}
Do the multiplications in the fraction \frac{4\times 12}{9\times 5}.
\frac{16}{15}+\frac{\frac{7}{8}}{\frac{5}{6}}-\frac{11}{30}
Reduce the fraction \frac{48}{45} to lowest terms by extracting and canceling out 3.
\frac{16}{15}+\frac{7}{8}\times \frac{6}{5}-\frac{11}{30}
Divide \frac{7}{8} by \frac{5}{6} by multiplying \frac{7}{8} by the reciprocal of \frac{5}{6}.
\frac{16}{15}+\frac{7\times 6}{8\times 5}-\frac{11}{30}
Multiply \frac{7}{8} times \frac{6}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{16}{15}+\frac{42}{40}-\frac{11}{30}
Do the multiplications in the fraction \frac{7\times 6}{8\times 5}.
\frac{16}{15}+\frac{21}{20}-\frac{11}{30}
Reduce the fraction \frac{42}{40} to lowest terms by extracting and canceling out 2.
\frac{64}{60}+\frac{63}{60}-\frac{11}{30}
Least common multiple of 15 and 20 is 60. Convert \frac{16}{15} and \frac{21}{20} to fractions with denominator 60.
\frac{64+63}{60}-\frac{11}{30}
Since \frac{64}{60} and \frac{63}{60} have the same denominator, add them by adding their numerators.
\frac{127}{60}-\frac{11}{30}
Add 64 and 63 to get 127.
\frac{127}{60}-\frac{22}{60}
Least common multiple of 60 and 30 is 60. Convert \frac{127}{60} and \frac{11}{30} to fractions with denominator 60.
\frac{127-22}{60}
Since \frac{127}{60} and \frac{22}{60} have the same denominator, subtract them by subtracting their numerators.
\frac{105}{60}
Subtract 22 from 127 to get 105.
\frac{7}{4}
Reduce the fraction \frac{105}{60} to lowest terms by extracting and canceling out 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}