Evaluate
\frac{39}{100}=0.39
Factor
\frac{3 \cdot 13}{2 ^ {2} \cdot 5 ^ {2}} = 0.39
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\frac{3}{10}\times \frac{10+3}{10}
Multiply 1 and 10 to get 10.
\frac{3}{10}\times \frac{13}{10}
Add 10 and 3 to get 13.
\frac{3\times 13}{10\times 10}
Multiply \frac{3}{10} times \frac{13}{10} by multiplying numerator times numerator and denominator times denominator.
\frac{39}{100}
Do the multiplications in the fraction \frac{3\times 13}{10\times 10}.
Examples
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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
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