Evaluate
\frac{55}{42}\approx 1.30952381
Factor
\frac{5 \cdot 11}{2 \cdot 3 \cdot 7} = 1\frac{13}{42} = 1.3095238095238095
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\frac{35+1}{7}-\frac{3\times 6+5}{6}
Multiply 5 and 7 to get 35.
\frac{36}{7}-\frac{3\times 6+5}{6}
Add 35 and 1 to get 36.
\frac{36}{7}-\frac{18+5}{6}
Multiply 3 and 6 to get 18.
\frac{36}{7}-\frac{23}{6}
Add 18 and 5 to get 23.
\frac{216}{42}-\frac{161}{42}
Least common multiple of 7 and 6 is 42. Convert \frac{36}{7} and \frac{23}{6} to fractions with denominator 42.
\frac{216-161}{42}
Since \frac{216}{42} and \frac{161}{42} have the same denominator, subtract them by subtracting their numerators.
\frac{55}{42}
Subtract 161 from 216 to get 55.
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}