Evaluate
\frac{6225}{4}=1556.25
Factor
\frac{3 \cdot 5 ^ {2} \cdot 83}{2 ^ {2}} = 1556\frac{1}{4} = 1556.25
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1245\times \frac{5}{4}
Divide 1245 by \frac{4}{5} by multiplying 1245 by the reciprocal of \frac{4}{5}.
\frac{1245\times 5}{4}
Express 1245\times \frac{5}{4} as a single fraction.
\frac{6225}{4}
Multiply 1245 and 5 to get 6225.
Examples
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{ 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}