Evaluate
\frac{15}{7}\approx 2.142857143
Factor
\frac{3 \cdot 5}{7} = 2\frac{1}{7} = 2.142857142857143
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\frac{21+24}{21}
Multiply 1 and 21 to get 21.
\frac{45}{21}
Add 21 and 24 to get 45.
\frac{15}{7}
Reduce the fraction \frac{45}{21} to lowest terms by extracting and canceling out 3.
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{ x } ^ { 2 } - 4 x - 5 = 0
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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 ) }
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Limits
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