Evaluate
-18.45
Factor
-18.45
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17.625-\left(4.4+\frac{56+5}{8}\right)\times 3
Multiply 7 and 8 to get 56.
17.625-\left(4.4+\frac{61}{8}\right)\times 3
Add 56 and 5 to get 61.
17.625-\left(\frac{22}{5}+\frac{61}{8}\right)\times 3
Convert decimal number 4.4 to fraction \frac{44}{10}. Reduce the fraction \frac{44}{10} to lowest terms by extracting and canceling out 2.
17.625-\left(\frac{176}{40}+\frac{305}{40}\right)\times 3
Least common multiple of 5 and 8 is 40. Convert \frac{22}{5} and \frac{61}{8} to fractions with denominator 40.
17.625-\frac{176+305}{40}\times 3
Since \frac{176}{40} and \frac{305}{40} have the same denominator, add them by adding their numerators.
17.625-\frac{481}{40}\times 3
Add 176 and 305 to get 481.
17.625-\frac{481\times 3}{40}
Express \frac{481}{40}\times 3 as a single fraction.
17.625-\frac{1443}{40}
Multiply 481 and 3 to get 1443.
\frac{141}{8}-\frac{1443}{40}
Convert decimal number 17.625 to fraction \frac{17625}{1000}. Reduce the fraction \frac{17625}{1000} to lowest terms by extracting and canceling out 125.
\frac{705}{40}-\frac{1443}{40}
Least common multiple of 8 and 40 is 40. Convert \frac{141}{8} and \frac{1443}{40} to fractions with denominator 40.
\frac{705-1443}{40}
Since \frac{705}{40} and \frac{1443}{40} have the same denominator, subtract them by subtracting their numerators.
\frac{-738}{40}
Subtract 1443 from 705 to get -738.
-\frac{369}{20}
Reduce the fraction \frac{-738}{40} to lowest terms by extracting and canceling out 2.
Examples
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{ 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}