Evaluate
\frac{1423}{650}\approx 2.189230769
Factor
\frac{1423}{2 \cdot 13 \cdot 5 ^ {2}} = 2\frac{123}{650} = 2.189230769230769
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\frac{55}{130}\times 3+0.92
Expand \frac{0.55}{1.3} by multiplying both numerator and the denominator by 100.
\frac{11}{26}\times 3+0.92
Reduce the fraction \frac{55}{130} to lowest terms by extracting and canceling out 5.
\frac{11\times 3}{26}+0.92
Express \frac{11}{26}\times 3 as a single fraction.
\frac{33}{26}+0.92
Multiply 11 and 3 to get 33.
\frac{33}{26}+\frac{23}{25}
Convert decimal number 0.92 to fraction \frac{92}{100}. Reduce the fraction \frac{92}{100} to lowest terms by extracting and canceling out 4.
\frac{825}{650}+\frac{598}{650}
Least common multiple of 26 and 25 is 650. Convert \frac{33}{26} and \frac{23}{25} to fractions with denominator 650.
\frac{825+598}{650}
Since \frac{825}{650} and \frac{598}{650} have the same denominator, add them by adding their numerators.
\frac{1423}{650}
Add 825 and 598 to get 1423.
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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}