Evaluate
0.65
Factor
\frac{13}{5 \cdot 2 ^ {2}} = 0.65
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1-\frac{0.4\left(\frac{3+1}{3}+0.75\right)-0.25}{\frac{1\times 3+2}{3}}
Multiply 1 and 3 to get 3.
1-\frac{0.4\left(\frac{4}{3}+0.75\right)-0.25}{\frac{1\times 3+2}{3}}
Add 3 and 1 to get 4.
1-\frac{0.4\left(\frac{4}{3}+\frac{3}{4}\right)-0.25}{\frac{1\times 3+2}{3}}
Convert decimal number 0.75 to fraction \frac{75}{100}. Reduce the fraction \frac{75}{100} to lowest terms by extracting and canceling out 25.
1-\frac{0.4\left(\frac{16}{12}+\frac{9}{12}\right)-0.25}{\frac{1\times 3+2}{3}}
Least common multiple of 3 and 4 is 12. Convert \frac{4}{3} and \frac{3}{4} to fractions with denominator 12.
1-\frac{0.4\times \frac{16+9}{12}-0.25}{\frac{1\times 3+2}{3}}
Since \frac{16}{12} and \frac{9}{12} have the same denominator, add them by adding their numerators.
1-\frac{0.4\times \frac{25}{12}-0.25}{\frac{1\times 3+2}{3}}
Add 16 and 9 to get 25.
1-\frac{\frac{2}{5}\times \frac{25}{12}-0.25}{\frac{1\times 3+2}{3}}
Convert decimal number 0.4 to fraction \frac{4}{10}. Reduce the fraction \frac{4}{10} to lowest terms by extracting and canceling out 2.
1-\frac{\frac{2\times 25}{5\times 12}-0.25}{\frac{1\times 3+2}{3}}
Multiply \frac{2}{5} times \frac{25}{12} by multiplying numerator times numerator and denominator times denominator.
1-\frac{\frac{50}{60}-0.25}{\frac{1\times 3+2}{3}}
Do the multiplications in the fraction \frac{2\times 25}{5\times 12}.
1-\frac{\frac{5}{6}-0.25}{\frac{1\times 3+2}{3}}
Reduce the fraction \frac{50}{60} to lowest terms by extracting and canceling out 10.
1-\frac{\frac{5}{6}-\frac{1}{4}}{\frac{1\times 3+2}{3}}
Convert decimal number 0.25 to fraction \frac{25}{100}. Reduce the fraction \frac{25}{100} to lowest terms by extracting and canceling out 25.
1-\frac{\frac{10}{12}-\frac{3}{12}}{\frac{1\times 3+2}{3}}
Least common multiple of 6 and 4 is 12. Convert \frac{5}{6} and \frac{1}{4} to fractions with denominator 12.
1-\frac{\frac{10-3}{12}}{\frac{1\times 3+2}{3}}
Since \frac{10}{12} and \frac{3}{12} have the same denominator, subtract them by subtracting their numerators.
1-\frac{\frac{7}{12}}{\frac{1\times 3+2}{3}}
Subtract 3 from 10 to get 7.
1-\frac{\frac{7}{12}}{\frac{3+2}{3}}
Multiply 1 and 3 to get 3.
1-\frac{\frac{7}{12}}{\frac{5}{3}}
Add 3 and 2 to get 5.
1-\frac{7}{12}\times \frac{3}{5}
Divide \frac{7}{12} by \frac{5}{3} by multiplying \frac{7}{12} by the reciprocal of \frac{5}{3}.
1-\frac{7\times 3}{12\times 5}
Multiply \frac{7}{12} times \frac{3}{5} by multiplying numerator times numerator and denominator times denominator.
1-\frac{21}{60}
Do the multiplications in the fraction \frac{7\times 3}{12\times 5}.
1-\frac{7}{20}
Reduce the fraction \frac{21}{60} to lowest terms by extracting and canceling out 3.
\frac{20}{20}-\frac{7}{20}
Convert 1 to fraction \frac{20}{20}.
\frac{20-7}{20}
Since \frac{20}{20} and \frac{7}{20} have the same denominator, subtract them by subtracting their numerators.
\frac{13}{20}
Subtract 7 from 20 to get 13.
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}