Evaluate
\frac{235}{21}\approx 11.19047619
Factor
\frac{5 \cdot 47}{3 \cdot 7} = 11\frac{4}{21} = 11.19047619047619
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\frac{\frac{42+5}{7}\times \frac{2\times 3+1}{3}}{\frac{1\times 5+2}{5}}
Multiply 6 and 7 to get 42.
\frac{\frac{47}{7}\times \frac{2\times 3+1}{3}}{\frac{1\times 5+2}{5}}
Add 42 and 5 to get 47.
\frac{\frac{47}{7}\times \frac{6+1}{3}}{\frac{1\times 5+2}{5}}
Multiply 2 and 3 to get 6.
\frac{\frac{47}{7}\times \frac{7}{3}}{\frac{1\times 5+2}{5}}
Add 6 and 1 to get 7.
\frac{\frac{47\times 7}{7\times 3}}{\frac{1\times 5+2}{5}}
Multiply \frac{47}{7} times \frac{7}{3} by multiplying numerator times numerator and denominator times denominator.
\frac{\frac{47}{3}}{\frac{1\times 5+2}{5}}
Cancel out 7 in both numerator and denominator.
\frac{\frac{47}{3}}{\frac{5+2}{5}}
Multiply 1 and 5 to get 5.
\frac{\frac{47}{3}}{\frac{7}{5}}
Add 5 and 2 to get 7.
\frac{47}{3}\times \frac{5}{7}
Divide \frac{47}{3} by \frac{7}{5} by multiplying \frac{47}{3} by the reciprocal of \frac{7}{5}.
\frac{47\times 5}{3\times 7}
Multiply \frac{47}{3} times \frac{5}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{235}{21}
Do the multiplications in the fraction \frac{47\times 5}{3\times 7}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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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}