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\frac{3+1}{3}\times \frac{3}{4}
Multiply 1 and 3 to get 3.
\frac{4}{3}\times \frac{3}{4}
Add 3 and 1 to get 4.
1
Cancel out \frac{4}{3} and its reciprocal \frac{3}{4}.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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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
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Limits
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