Evaluate
7.5
Factor
\frac{3 \cdot 5}{2} = 7\frac{1}{2} = 7.5
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\frac{\frac{84}{960}\times 3}{35}\times 1000
Expand \frac{8.4}{96} by multiplying both numerator and the denominator by 10.
\frac{\frac{7}{80}\times 3}{35}\times 1000
Reduce the fraction \frac{84}{960} to lowest terms by extracting and canceling out 12.
\frac{\frac{7\times 3}{80}}{35}\times 1000
Express \frac{7}{80}\times 3 as a single fraction.
\frac{\frac{21}{80}}{35}\times 1000
Multiply 7 and 3 to get 21.
\frac{21}{80\times 35}\times 1000
Express \frac{\frac{21}{80}}{35} as a single fraction.
\frac{21}{2800}\times 1000
Multiply 80 and 35 to get 2800.
\frac{3}{400}\times 1000
Reduce the fraction \frac{21}{2800} to lowest terms by extracting and canceling out 7.
\frac{3\times 1000}{400}
Express \frac{3}{400}\times 1000 as a single fraction.
\frac{3000}{400}
Multiply 3 and 1000 to get 3000.
\frac{15}{2}
Reduce the fraction \frac{3000}{400} to lowest terms by extracting and canceling out 200.
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}