Evaluate
-\frac{257}{30}\approx -8.566666667
Factor
-\frac{257}{30} = -8\frac{17}{30} = -8.566666666666666
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3-\frac{3}{2}+8-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Divide 18 by 6 to get 3.
\frac{6}{2}-\frac{3}{2}+8-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Convert 3 to fraction \frac{6}{2}.
\frac{6-3}{2}+8-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{6}{2} and \frac{3}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{3}{2}+8-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Subtract 3 from 6 to get 3.
\frac{3}{2}+\frac{16}{2}-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Convert 8 to fraction \frac{16}{2}.
\frac{3+16}{2}-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{3}{2} and \frac{16}{2} have the same denominator, add them by adding their numerators.
\frac{19}{2}-6-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Add 3 and 16 to get 19.
\frac{19}{2}-\frac{12}{2}-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Convert 6 to fraction \frac{12}{2}.
\frac{19-12}{2}-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{19}{2} and \frac{12}{2} have the same denominator, subtract them by subtracting their numerators.
\frac{7}{2}-\frac{1}{5}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Subtract 12 from 19 to get 7.
\frac{35}{10}-\frac{2}{10}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Least common multiple of 2 and 5 is 10. Convert \frac{7}{2} and \frac{1}{5} to fractions with denominator 10.
\frac{35-2}{10}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{35}{10} and \frac{2}{10} have the same denominator, subtract them by subtracting their numerators.
\frac{33}{10}-\frac{2}{3}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Subtract 2 from 35 to get 33.
\frac{99}{30}-\frac{20}{30}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Least common multiple of 10 and 3 is 30. Convert \frac{33}{10} and \frac{2}{3} to fractions with denominator 30.
\frac{99-20}{30}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{99}{30} and \frac{20}{30} have the same denominator, subtract them by subtracting their numerators.
\frac{79}{30}+\frac{5}{3}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Subtract 20 from 99 to get 79.
\frac{79}{30}+\frac{50}{30}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Least common multiple of 30 and 3 is 30. Convert \frac{79}{30} and \frac{5}{3} to fractions with denominator 30.
\frac{79+50}{30}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{79}{30} and \frac{50}{30} have the same denominator, add them by adding their numerators.
\frac{129}{30}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Add 79 and 50 to get 129.
\frac{43}{10}+\frac{6}{36}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Reduce the fraction \frac{129}{30} to lowest terms by extracting and canceling out 3.
\frac{43}{10}+\frac{1}{6}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Reduce the fraction \frac{6}{36} to lowest terms by extracting and canceling out 6.
\frac{129}{30}+\frac{5}{30}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Least common multiple of 10 and 6 is 30. Convert \frac{43}{10} and \frac{1}{6} to fractions with denominator 30.
\frac{129+5}{30}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{129}{30} and \frac{5}{30} have the same denominator, add them by adding their numerators.
\frac{134}{30}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Add 129 and 5 to get 134.
\frac{67}{15}-1+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Reduce the fraction \frac{134}{30} to lowest terms by extracting and canceling out 2.
\frac{67}{15}-\frac{15}{15}+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Convert 1 to fraction \frac{15}{15}.
\frac{67-15}{15}+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{67}{15} and \frac{15}{15} have the same denominator, subtract them by subtracting their numerators.
\frac{52}{15}+\frac{7}{14}-10-4+\frac{4}{5}+\frac{2}{3}
Subtract 15 from 67 to get 52.
\frac{52}{15}+\frac{1}{2}-10-4+\frac{4}{5}+\frac{2}{3}
Reduce the fraction \frac{7}{14} to lowest terms by extracting and canceling out 7.
\frac{104}{30}+\frac{15}{30}-10-4+\frac{4}{5}+\frac{2}{3}
Least common multiple of 15 and 2 is 30. Convert \frac{52}{15} and \frac{1}{2} to fractions with denominator 30.
\frac{104+15}{30}-10-4+\frac{4}{5}+\frac{2}{3}
Since \frac{104}{30} and \frac{15}{30} have the same denominator, add them by adding their numerators.
\frac{119}{30}-10-4+\frac{4}{5}+\frac{2}{3}
Add 104 and 15 to get 119.
\frac{119}{30}-\frac{300}{30}-4+\frac{4}{5}+\frac{2}{3}
Convert 10 to fraction \frac{300}{30}.
\frac{119-300}{30}-4+\frac{4}{5}+\frac{2}{3}
Since \frac{119}{30} and \frac{300}{30} have the same denominator, subtract them by subtracting their numerators.
-\frac{181}{30}-4+\frac{4}{5}+\frac{2}{3}
Subtract 300 from 119 to get -181.
-\frac{181}{30}-\frac{120}{30}+\frac{4}{5}+\frac{2}{3}
Convert 4 to fraction \frac{120}{30}.
\frac{-181-120}{30}+\frac{4}{5}+\frac{2}{3}
Since -\frac{181}{30} and \frac{120}{30} have the same denominator, subtract them by subtracting their numerators.
-\frac{301}{30}+\frac{4}{5}+\frac{2}{3}
Subtract 120 from -181 to get -301.
-\frac{301}{30}+\frac{24}{30}+\frac{2}{3}
Least common multiple of 30 and 5 is 30. Convert -\frac{301}{30} and \frac{4}{5} to fractions with denominator 30.
\frac{-301+24}{30}+\frac{2}{3}
Since -\frac{301}{30} and \frac{24}{30} have the same denominator, add them by adding their numerators.
-\frac{277}{30}+\frac{2}{3}
Add -301 and 24 to get -277.
-\frac{277}{30}+\frac{20}{30}
Least common multiple of 30 and 3 is 30. Convert -\frac{277}{30} and \frac{2}{3} to fractions with denominator 30.
\frac{-277+20}{30}
Since -\frac{277}{30} and \frac{20}{30} have the same denominator, add them by adding their numerators.
-\frac{257}{30}
Add -277 and 20 to get -257.
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}