Evaluate
\frac{7}{2}=3.5
Factor
\frac{7}{2} = 3\frac{1}{2} = 3.5
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\frac{7}{8}\times 4
Divide \frac{7}{8} by \frac{1}{4} by multiplying \frac{7}{8} by the reciprocal of \frac{1}{4}.
\frac{7\times 4}{8}
Express \frac{7}{8}\times 4 as a single fraction.
\frac{28}{8}
Multiply 7 and 4 to get 28.
\frac{7}{2}
Reduce the fraction \frac{28}{8} to lowest terms by extracting and canceling out 4.
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y = 3x + 4
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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}