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17
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18.75+\frac{45+2}{9}+\frac{1\times 9+7}{9}-\frac{8\times 4+3}{4}
Multiply 5 and 9 to get 45.
18.75+\frac{47}{9}+\frac{1\times 9+7}{9}-\frac{8\times 4+3}{4}
Add 45 and 2 to get 47.
\frac{75}{4}+\frac{47}{9}+\frac{1\times 9+7}{9}-\frac{8\times 4+3}{4}
Convert decimal number 18.75 to fraction \frac{1875}{100}. Reduce the fraction \frac{1875}{100} to lowest terms by extracting and canceling out 25.
\frac{675}{36}+\frac{188}{36}+\frac{1\times 9+7}{9}-\frac{8\times 4+3}{4}
Least common multiple of 4 and 9 is 36. Convert \frac{75}{4} and \frac{47}{9} to fractions with denominator 36.
\frac{675+188}{36}+\frac{1\times 9+7}{9}-\frac{8\times 4+3}{4}
Since \frac{675}{36} and \frac{188}{36} have the same denominator, add them by adding their numerators.
\frac{863}{36}+\frac{1\times 9+7}{9}-\frac{8\times 4+3}{4}
Add 675 and 188 to get 863.
\frac{863}{36}+\frac{9+7}{9}-\frac{8\times 4+3}{4}
Multiply 1 and 9 to get 9.
\frac{863}{36}+\frac{16}{9}-\frac{8\times 4+3}{4}
Add 9 and 7 to get 16.
\frac{863}{36}+\frac{64}{36}-\frac{8\times 4+3}{4}
Least common multiple of 36 and 9 is 36. Convert \frac{863}{36} and \frac{16}{9} to fractions with denominator 36.
\frac{863+64}{36}-\frac{8\times 4+3}{4}
Since \frac{863}{36} and \frac{64}{36} have the same denominator, add them by adding their numerators.
\frac{927}{36}-\frac{8\times 4+3}{4}
Add 863 and 64 to get 927.
\frac{103}{4}-\frac{8\times 4+3}{4}
Reduce the fraction \frac{927}{36} to lowest terms by extracting and canceling out 9.
\frac{103}{4}-\frac{32+3}{4}
Multiply 8 and 4 to get 32.
\frac{103}{4}-\frac{35}{4}
Add 32 and 3 to get 35.
\frac{103-35}{4}
Since \frac{103}{4} and \frac{35}{4} have the same denominator, subtract them by subtracting their numerators.
\frac{68}{4}
Subtract 35 from 103 to get 68.
17
Divide 68 by 4 to get 17.
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}