Evaluate
\frac{330}{47}\approx 7.021276596
Factor
\frac{2 \cdot 3 \cdot 5 \cdot 11}{47} = 7\frac{1}{47} = 7.0212765957446805
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15\times \frac{2.2}{4.7}
Add 2.5 and 2.2 to get 4.7.
15\times \frac{22}{47}
Expand \frac{2.2}{4.7} by multiplying both numerator and the denominator by 10.
\frac{15\times 22}{47}
Express 15\times \frac{22}{47} as a single fraction.
\frac{330}{47}
Multiply 15 and 22 to get 330.
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}