Evaluate
-\frac{143}{90}\approx -1.588888889
Factor
-\frac{143}{90} = -1\frac{53}{90} = -1.5888888888888888
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\frac{5}{6}+-\frac{1}{5}-\frac{5}{5}-\left(-\frac{3}{2}+\frac{1\times 3+1}{3}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Convert 1 to fraction \frac{5}{5}.
\frac{5}{6}+\frac{-1-5}{5}-\left(-\frac{3}{2}+\frac{1\times 3+1}{3}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Since -\frac{1}{5} and \frac{5}{5} have the same denominator, subtract them by subtracting their numerators.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{3}{2}+\frac{1\times 3+1}{3}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Subtract 5 from -1 to get -6.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{3}{2}+\frac{3+1}{3}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Multiply 1 and 3 to get 3.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{3}{2}+\frac{4}{3}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Add 3 and 1 to get 4.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{9}{6}+\frac{8}{6}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Least common multiple of 2 and 3 is 6. Convert -\frac{3}{2} and \frac{4}{3} to fractions with denominator 6.
\frac{5}{6}+-\frac{6}{5}-\left(\frac{-9+8}{6}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Since -\frac{9}{6} and \frac{8}{6} have the same denominator, add them by adding their numerators.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{1}{6}-\frac{4}{9}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Add -9 and 8 to get -1.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{3}{18}-\frac{8}{18}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Least common multiple of 6 and 9 is 18. Convert -\frac{1}{6} and \frac{4}{9} to fractions with denominator 18.
\frac{5}{6}+-\frac{6}{5}-\frac{-3-8}{18}-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Since -\frac{3}{18} and \frac{8}{18} have the same denominator, subtract them by subtracting their numerators.
\frac{5}{6}+-\frac{6}{5}-\left(-\frac{11}{18}\right)-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Subtract 8 from -3 to get -11.
\frac{5}{6}+-\frac{6}{5}+\frac{11}{18}-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
The opposite of -\frac{11}{18} is \frac{11}{18}.
\frac{5}{6}+-\frac{108}{90}+\frac{55}{90}-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Least common multiple of 5 and 18 is 90. Convert -\frac{6}{5} and \frac{11}{18} to fractions with denominator 90.
\frac{5}{6}+\frac{-108+55}{90}-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Since -\frac{108}{90} and \frac{55}{90} have the same denominator, add them by adding their numerators.
\frac{5}{6}+-\frac{53}{90}-2-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Add -108 and 55 to get -53.
\frac{5}{6}+-\frac{53}{90}-\frac{180}{90}-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Convert 2 to fraction \frac{180}{90}.
\frac{5}{6}+\frac{-53-180}{90}-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Since -\frac{53}{90} and \frac{180}{90} have the same denominator, subtract them by subtracting their numerators.
\frac{5}{6}+-\frac{233}{90}-\left(\frac{7}{18}-1+\frac{4}{9}\right)
Subtract 180 from -53 to get -233.
\frac{5}{6}+-\frac{233}{90}-\left(\frac{7}{18}-\frac{18}{18}+\frac{4}{9}\right)
Convert 1 to fraction \frac{18}{18}.
\frac{5}{6}+-\frac{233}{90}-\left(\frac{7-18}{18}+\frac{4}{9}\right)
Since \frac{7}{18} and \frac{18}{18} have the same denominator, subtract them by subtracting their numerators.
\frac{5}{6}+-\frac{233}{90}-\left(-\frac{11}{18}+\frac{4}{9}\right)
Subtract 18 from 7 to get -11.
\frac{5}{6}+-\frac{233}{90}-\left(-\frac{11}{18}+\frac{8}{18}\right)
Least common multiple of 18 and 9 is 18. Convert -\frac{11}{18} and \frac{4}{9} to fractions with denominator 18.
\frac{5}{6}-\frac{233}{90}-\frac{-11+8}{18}
Since -\frac{11}{18} and \frac{8}{18} have the same denominator, add them by adding their numerators.
\frac{5}{6}-\frac{233}{90}-\frac{-3}{18}
Add -11 and 8 to get -3.
\frac{5}{6}+-\frac{233}{90}-\left(-\frac{1}{6}\right)
Reduce the fraction \frac{-3}{18} to lowest terms by extracting and canceling out 3.
\frac{5}{6}-\frac{233}{90}+\frac{1}{6}
The opposite of -\frac{1}{6} is \frac{1}{6}.
\frac{5}{6}-\frac{233}{90}+\frac{15}{90}
Least common multiple of 90 and 6 is 90. Convert -\frac{233}{90} and \frac{1}{6} to fractions with denominator 90.
\frac{5}{6}+\frac{-233+15}{90}
Since -\frac{233}{90} and \frac{15}{90} have the same denominator, add them by adding their numerators.
\frac{5}{6}+\frac{-218}{90}
Add -233 and 15 to get -218.
\frac{5}{6}-\frac{109}{45}
Reduce the fraction \frac{-218}{90} to lowest terms by extracting and canceling out 2.
\frac{75}{90}-\frac{218}{90}
Least common multiple of 6 and 45 is 90. Convert \frac{5}{6} and \frac{109}{45} to fractions with denominator 90.
\frac{75-218}{90}
Since \frac{75}{90} and \frac{218}{90} have the same denominator, subtract them by subtracting their numerators.
-\frac{143}{90}
Subtract 218 from 75 to get -143.
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}