Evaluate
-\frac{79}{70}\approx -1.128571429
Factor
-\frac{79}{70} = -1\frac{9}{70} = -1.1285714285714286
Share
Copied to clipboard
8.3-\frac{11\times 6}{7}
Express \frac{11}{7}\times 6 as a single fraction.
8.3-\frac{66}{7}
Multiply 11 and 6 to get 66.
\frac{83}{10}-\frac{66}{7}
Convert decimal number 8.3 to fraction \frac{83}{10}.
\frac{581}{70}-\frac{660}{70}
Least common multiple of 10 and 7 is 70. Convert \frac{83}{10} and \frac{66}{7} to fractions with denominator 70.
\frac{581-660}{70}
Since \frac{581}{70} and \frac{660}{70} have the same denominator, subtract them by subtracting their numerators.
-\frac{79}{70}
Subtract 660 from 581 to get -79.
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}