Evaluate
-7.5
Factor
-7.5
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-\frac{5}{6}\left(12-\frac{10+2}{5}-0.6\right)
Multiply 2 and 5 to get 10.
-\frac{5}{6}\left(12-\frac{12}{5}-0.6\right)
Add 10 and 2 to get 12.
-\frac{5}{6}\left(\frac{60}{5}-\frac{12}{5}-0.6\right)
Convert 12 to fraction \frac{60}{5}.
-\frac{5}{6}\left(\frac{60-12}{5}-0.6\right)
Since \frac{60}{5} and \frac{12}{5} have the same denominator, subtract them by subtracting their numerators.
-\frac{5}{6}\left(\frac{48}{5}-0.6\right)
Subtract 12 from 60 to get 48.
-\frac{5}{6}\left(\frac{48}{5}-\frac{3}{5}\right)
Convert decimal number 0.6 to fraction \frac{6}{10}. Reduce the fraction \frac{6}{10} to lowest terms by extracting and canceling out 2.
-\frac{5}{6}\times \frac{48-3}{5}
Since \frac{48}{5} and \frac{3}{5} have the same denominator, subtract them by subtracting their numerators.
-\frac{5}{6}\times \frac{45}{5}
Subtract 3 from 48 to get 45.
-\frac{5}{6}\times 9
Divide 45 by 5 to get 9.
\frac{-5\times 9}{6}
Express -\frac{5}{6}\times 9 as a single fraction.
\frac{-45}{6}
Multiply -5 and 9 to get -45.
-\frac{15}{2}
Reduce the fraction \frac{-45}{6} to lowest terms by extracting and canceling out 3.
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}