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Arithmetic
5 problems similar to:
\frac { 45 } { 82 } - ( \frac { 30 } { 82 } + \frac { 15 } { 82 } )
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\frac{45}{82}-\frac{30+15}{82}
Since \frac{30}{82} and \frac{15}{82} have the same denominator, add them by adding their numerators.
\frac{45}{82}-\frac{45}{82}
Add 30 and 15 to get 45.
0
Subtract \frac{45}{82} from \frac{45}{82} to get 0.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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