Evaluate
\frac{75}{28}\approx 2.678571429
Factor
\frac{3 \cdot 5 ^ {2}}{2 ^ {2} \cdot 7} = 2\frac{19}{28} = 2.6785714285714284
Quiz
Arithmetic
5 problems similar to:
\frac { 5 } { 4 } \div \frac { 7 } { 3 } \div \frac { 1 } { 5 } =
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\frac{\frac{5}{4}\times 5}{\frac{7}{3}}
Divide \frac{\frac{5}{4}}{\frac{7}{3}} by \frac{1}{5} by multiplying \frac{\frac{5}{4}}{\frac{7}{3}} by the reciprocal of \frac{1}{5}.
\frac{\frac{5\times 5}{4}}{\frac{7}{3}}
Express \frac{5}{4}\times 5 as a single fraction.
\frac{\frac{25}{4}}{\frac{7}{3}}
Multiply 5 and 5 to get 25.
\frac{25}{4}\times \frac{3}{7}
Divide \frac{25}{4} by \frac{7}{3} by multiplying \frac{25}{4} by the reciprocal of \frac{7}{3}.
\frac{25\times 3}{4\times 7}
Multiply \frac{25}{4} times \frac{3}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{75}{28}
Do the multiplications in the fraction \frac{25\times 3}{4\times 7}.
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}