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5
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5
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\frac{\left(8\times 7+4\right)\times 7}{7\left(1\times 7+5\right)}
Divide \frac{8\times 7+4}{7} by \frac{1\times 7+5}{7} by multiplying \frac{8\times 7+4}{7} by the reciprocal of \frac{1\times 7+5}{7}.
\frac{4+7\times 8}{5+7}
Cancel out 7 in both numerator and denominator.
\frac{4+56}{5+7}
Multiply 7 and 8 to get 56.
\frac{60}{5+7}
Add 4 and 56 to get 60.
\frac{60}{12}
Add 5 and 7 to get 12.
5
Divide 60 by 12 to get 5.
Examples
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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 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
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