Evaluate
\frac{35}{2}=17.5
Factor
\frac{5 \cdot 7}{2} = 17\frac{1}{2} = 17.5
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\frac{25}{2}\times \frac{7}{5}
Divide \frac{25}{2} by \frac{5}{7} by multiplying \frac{25}{2} by the reciprocal of \frac{5}{7}.
\frac{25\times 7}{2\times 5}
Multiply \frac{25}{2} times \frac{7}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{175}{10}
Do the multiplications in the fraction \frac{25\times 7}{2\times 5}.
\frac{35}{2}
Reduce the fraction \frac{175}{10} to lowest terms by extracting and canceling out 5.
Examples
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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]
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\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}