Evaluate
1.2
Factor
\frac{2 \cdot 3}{5} = 1\frac{1}{5} = 1.2
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\frac{-2.8}{\frac{2}{3}-3}
Subtract 3 from 0.2 to get -2.8.
\frac{-2.8}{\frac{2}{3}-\frac{9}{3}}
Convert 3 to fraction \frac{9}{3}.
\frac{-2.8}{\frac{2-9}{3}}
Since \frac{2}{3} and \frac{9}{3} have the same denominator, subtract them by subtracting their numerators.
\frac{-2.8}{-\frac{7}{3}}
Subtract 9 from 2 to get -7.
-2.8\left(-\frac{3}{7}\right)
Divide -2.8 by -\frac{7}{3} by multiplying -2.8 by the reciprocal of -\frac{7}{3}.
-\frac{14}{5}\left(-\frac{3}{7}\right)
Convert decimal number -2.8 to fraction -\frac{28}{10}. Reduce the fraction -\frac{28}{10} to lowest terms by extracting and canceling out 2.
\frac{-14\left(-3\right)}{5\times 7}
Multiply -\frac{14}{5} times -\frac{3}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{42}{35}
Do the multiplications in the fraction \frac{-14\left(-3\right)}{5\times 7}.
\frac{6}{5}
Reduce the fraction \frac{42}{35} to lowest terms by extracting and canceling out 7.
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}