Evaluate
-\frac{99}{70}\approx -1.414285714
Factor
-\frac{99}{70} = -1\frac{29}{70} = -1.4142857142857144
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-1.2-\frac{150}{175}\times 0.25
Expand \frac{1.5}{1.75} by multiplying both numerator and the denominator by 100.
-1.2-\frac{6}{7}\times 0.25
Reduce the fraction \frac{150}{175} to lowest terms by extracting and canceling out 25.
-1.2-\frac{6}{7}\times \frac{1}{4}
Convert decimal number 0.25 to fraction \frac{25}{100}. Reduce the fraction \frac{25}{100} to lowest terms by extracting and canceling out 25.
-1.2-\frac{6\times 1}{7\times 4}
Multiply \frac{6}{7} times \frac{1}{4} by multiplying numerator times numerator and denominator times denominator.
-1.2-\frac{6}{28}
Do the multiplications in the fraction \frac{6\times 1}{7\times 4}.
-1.2-\frac{3}{14}
Reduce the fraction \frac{6}{28} to lowest terms by extracting and canceling out 2.
-\frac{6}{5}-\frac{3}{14}
Convert decimal number -1.2 to fraction -\frac{12}{10}. Reduce the fraction -\frac{12}{10} to lowest terms by extracting and canceling out 2.
-\frac{84}{70}-\frac{15}{70}
Least common multiple of 5 and 14 is 70. Convert -\frac{6}{5} and \frac{3}{14} to fractions with denominator 70.
\frac{-84-15}{70}
Since -\frac{84}{70} and \frac{15}{70} have the same denominator, subtract them by subtracting their numerators.
-\frac{99}{70}
Subtract 15 from -84 to get -99.
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}