Evaluate
\frac{90}{49}\approx 1.836734694
Factor
\frac{2 \cdot 3 ^ {2} \cdot 5}{7 ^ {2}} = 1\frac{41}{49} = 1.836734693877551
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\frac{\frac{16\times 5}{7\times 8}}{\frac{7}{9}}
Multiply \frac{16}{7} times \frac{5}{8} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{80}{56}}{\frac{7}{9}}
Do the multiplications in the fraction \frac{16\times 5}{7\times 8}.
\frac{\frac{10}{7}}{\frac{7}{9}}
Reduce the fraction \frac{80}{56} to lowest terms by extracting and canceling out 8.
\frac{10}{7}\times \frac{9}{7}
Divide \frac{10}{7} by \frac{7}{9} by multiplying \frac{10}{7} by the reciprocal of \frac{7}{9}.
\frac{10\times 9}{7\times 7}
Multiply \frac{10}{7} times \frac{9}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{90}{49}
Do the multiplications in the fraction \frac{10\times 9}{7\times 7}.
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}