40 \times 6 \% +40
Evaluate
\frac{212}{5}=42.4
Factor
\frac{2 ^ {2} \cdot 53}{5} = 42\frac{2}{5} = 42.4
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40\times \frac{3}{50}+40
Reduce the fraction \frac{6}{100} to lowest terms by extracting and canceling out 2.
\frac{40\times 3}{50}+40
Express 40\times \frac{3}{50} as a single fraction.
\frac{120}{50}+40
Multiply 40 and 3 to get 120.
\frac{12}{5}+40
Reduce the fraction \frac{120}{50} to lowest terms by extracting and canceling out 10.
\frac{12}{5}+\frac{200}{5}
Convert 40 to fraction \frac{200}{5}.
\frac{12+200}{5}
Since \frac{12}{5} and \frac{200}{5} have the same denominator, add them by adding their numerators.
\frac{212}{5}
Add 12 and 200 to get 212.
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}