Two persons, A and B, process the same part, A processes one part in (1/3) hour, B processes one part in (1/2) hour, 1 hour for both of them to process? parts. How many
甲、乙两人加工同样的零件，甲加工一个零件用(1/3)小时，乙加工一个零件用(1/2)小时，1小时两人共加工？个零件．多少
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / (1/3)</gadget>
<output>3</output>

<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / (1/2)</gadget>
<output>2</output>

<gadget id="calculator">3 + 2</gadget>
<output>5</output>

<result>5</result>