Evaluate
\frac{87}{7}\approx 12.428571429
Factor
\frac{3 \cdot 29}{7} = 12\frac{3}{7} = 12.428571428571429
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3\times \frac{28+1}{7}
Multiply 4 and 7 to get 28.
3\times \frac{29}{7}
Add 28 and 1 to get 29.
\frac{3\times 29}{7}
Express 3\times \frac{29}{7} as a single fraction.
\frac{87}{7}
Multiply 3 and 29 to get 87.
Examples
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Matrix
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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
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